RECORD: Walker, Francis. 1858-1859. Catalogue of the dipterous insects collected in the Aru Islands by Mr.A.R. Wallace, with descriptions of new species. Journal of the Proceedings of the Linnean Society (Zoology), 3 (10-11): 77-110, 111-131.

REVISION HISTORY: Transcribed (single key) by AEL Data 2012. RN1


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Catalogue of the Dipterous Insects collected in the Aru Islands by Mr. A. R. WALLACE, with Descriptions of New Species. By FRANCIS WALKER.

ARU ISLAND.

Fam. MYCETOPHILIDÆ, Haliday.

Gen. SCIARA, Meigen.

Div. A. a., Meig. vi. 305.

1. SCIARA SELECTA, n. s. Mas. Nigra, cinereo-tomentosa, antennis sat validis, pedibus piceis, alis cinereis, venis costalibus crassis.

Male. Black, with cinereous tomentum; antennæ rather stout; legs piceous; wings greyish; veins black; radial and cubital veins thick; radial vein extending to the fork of the subapical. Length of the body 1¾ line; of the wings 4 lines.

Fam. BIBIONIDÆ, Haliday.

Gen. PLECIA, Hoffmansegg.

2. Plecia dorsalis, Walk. See Vol. I. p. 5.

Fam. CULICIDÆ, Haliday.

3. CULEX SCUTELLARIS, n. s. Mas. Nigro-fuscus, capite thoraceque argenteo trivittatis, scutello rufescente; abdominis segmentis argenteo fasciatis, genubus et tarsorum posticorum fasciis niveis; alis subcinereis, venis nigris ciliatis.

Male. Blackish brown. Head and thorax with three silvery stripes, the middle one very distinct; scutellum reddish; pectus with silvery gloss; abdomen with silvery bands, which are narrow above, broad beneath; femora pale towards the base; knees snow-white; hind tarsi with 5 broad snow-white bands; middle tarsi with the first and second joints white at the base; wings slightly greyish; veins black, fringed. Length of the body 3 lines; of the wings 5 lines.

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Fam. TIPULIDÆ.

Gen. MEGISTOCERA, Wied.

4. Megistocera tuscana, Wied. Auss. Zweifl. 1. 55. 1. Inhabits also Java.

Gen. GYNOPLISTIA, Westw.

5. GYNOPLISTIA JURGIOSA, n. s. Mas. et Fœm. Nigra, capite rufescente, alis cinereis, plagis costalibus nigro-fuscis.— Mas. Abdomine ochraceo, apice nigro, femoribus basi testaceis.— Fœm. Abdomine atro fasciis albidis apice luteo.

Male and Female. Black. Head reddish; antennæ testaceous at the base; thorax testaceous in front; wings greyish, blackish-brown along the costa, and with three subcostal blackish-brown patches, the third continued along the veins towards the hind border. Male. Abdomen ochraceous, black at the tip; femora testaceous at the base; halteres testaceous. Female. Abdomen deep black, with whitish bands on the sutures; tip luteous. Length of the body 5–6 lines; of the wings 9–10 lines.

Fam. STRATIOMIDÆ, Haliday.

Gen. PTILOCERA, Wied.

6. Ptilocera quadridentata. See Vol. I. p. 7.

7. MASSICYTA INFLATA, n. s. Fœm. Nigra, capite viridi maculis nigris, antennis basi ferrugineis, pectoris callis duobus scutelloque testaceis, abdomine basi sordide albido lineis tribus nigris, fasciis duabus canotomentosis, segmentis tertio quartoque apice ferrugineis, tibiis basi tarsisque albidis, alis subcinereis fusco marginatis, stigmate nigricante, halteribus testaceis.

Female. Black. Head dull green, with several black spots; mouth testaceous; antennæ dark ferruginous towards the base; two pectoral calli and the scutellum testaceous; abdomen at the base dingy-whitish and semihyaline, and with three black lines; third and fourth segments with hoary bands, their hind borders ferruginous; tibiæ towards the base, and tarsi, whitish; hind tibiæ with the two colours most distinctly marked; wings grey, with broad brownish borders; stigma blackish; veins black; halteres testaceous. Length of the body 6 lines; of the wings 11 lines.

8. MASSICYTA CERIOÏDES, n. s. Fœm. Nigra, capite testaceo maculis nigris, antennis basi ferrugineis, pectoris callis duobus, thoracis vittis duabus interruptis, scutello abdominisque fasciis tribus viridibus, segmento abdominali secundo maculis duabus testaceis, tarsis albis, alis nigricanti-fuscis, halteribus viridibus.

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Female. Black. Head testaceous, with some black spots on the vertex. Antennæ dark ferruginous towards the base. An interrupted stripe on each side of the thorax, two pectoral calli, the scutellum, and the hind borders of the second, third, and fourth abdominal segments green. Abdomen testaceous at the base beneath; first band interrupted, having before it two testaceous spots. Knees lurid; tarsi white. Wings blackish brown; stigma and veins black; halteres apple-green. Length of the body 5–6 lines; of the wings 10–12 lines.

Gen. SALDUBA, n. g.

Male. Corpus angustum, sublineare. Caput transversum; vertex angustus. Oculi magni. Antennæ capite transverso valde longiores; articuli primo ad septimum breves; flagellum longum, lanceolatum, subarcuatum. Thorax longus, subcompressus; scutellum inerme. Abdomen planum, thorace paullo longius. Pedes graciles; postici longi. Alæ angustæ.

Male. Body narrow, nearly linear. Head slightly transverse, nearly as broad as the thorax; vertex narrow. Eyes large. Antennæ shorter than the thorax; joints from the first to the seventh short; flagellum long, lanceolate, slightly curved. Thorax long, slightly increasing in breadth from the head to the base of the wings. Abdomen nearly flat and linear, a little longer than the thorax. Legs slender; hind pair long. Wings narrow; veins complete, distinctly marked; first cubital areolet rather short, divided from the second by the oblique first cubital rim; discal areolet large, hexagonal; subanal and anal veins united at some distance from the border.

9. SALDUBA DIPHYSOIDES, n. s., Mas. Nigra, ore flavo, thorace vittis quatuor subauratis, abdominis apice cinereo, pedibus albidis, femoribus posticis apices versus tibiisque posticis nigris, alis cinereis, venis stigmateque nigris, halteribus testaceis.

Male. Black. Mouth yellow; thorax with four stripes of slightly gilded tomentum; tip of the abdomen with cinereous tomentum; legs whitish, hind femora towards the tips and hind tibiæ black; wings greyish, veins and stigma black; halteres testaceous. Length of the body 4½ lines; of the wings 8 lines.

Gen. STRATIOMYS.

10. STRATIOMYS CONFERTISSIMA, n. s. Fœm. Nigra, subtus ferru-ginea, capite fulvo, antennis basi fulvis, thorace vittis quatuor subauratis, scutelli margine fulvo, ventre piceo basi testaceo, pedibus fulvis nigro fasciatis; alis subcinereis, venis stigmateque nigris, halteribus testaceis.

Female. Black, ferruginous beneath. Head, antennæ at the base, border of the scutellum, and legs tawny; antennæ a little shorter than the breadth of the head; thorax with four slightly gilded

LINN. PROC.—ZOOLOGY. 6

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stripes; abdomen beneath piceous, testaceous at the base; femora and tibiæ with broad black bands; wings greyish, stigma and veins black; halteres testaceous. Length of the body 4 lines; of the wings 7½ lines.

11. STRATIOMYS NEXURA, n. s. Mas et Fœm. Nigra, antennis basi fulvis, capite transverso brevioribus, abdominis lateribus, ventre, tibiis, tarsis halteribusque fulvis, alis limpidis, venis testaceis. Mas. Thorace atro piloso. Fœm. Thorace nigro-æneo angustiore.

Male and female. Black. Head rather prominent; antennæ tawny towards the base, shorter than the breadth of the head; spines of the scutellum, abdomen beneath, tibiæ, tarsi, and halteres tawny; wings limpid, veins testaceous. Male. Thorax deep black, pilose; abdomen tawny along each side. Female. Head shining; thorax æneous black, narrower than that of the male; abdomen with the tawny stripes much narrower than those of the male. Length of the body 3½ lines; of the wings 6½ lines.

Gen. CLITELLARIA, Meigen.

12. Clitellaria bivittata, Fabr. See Vol. I. p. 7.

Gen. GABAZA, n. g.

Fœm. Corpus breve, latum. Caput transversum, thorace paullo angustius; facies valde obliqua. Antennæ capite transverso breviores; articuli breves, transversi; arista longa, gracilis, filiformis. Scutellum prominens, spinis duabus minutis. Abdomen transversum, thorace multo latius. Pedes graciles, breviusculi. Alæ sat angustæ; venæ tenues.

Female. Body short, broad. Head transverse, a little narrower than the thorax; face very oblique. Antennæ shorter than the breadth of the head; joints short, transverse; arista slender, filiform, longer than the preceding part, which is lanceolate. Scutellum prominent, armed with two minute spines. Abdomen transverse, much broader than the thorax. Legs slender, somewhat short. Wings rather narrow; veins feeble, in structure like those of Stratiomys.

13. GABAZA ARGENTEA, n. s. Fœm. Nigra, antennis fulvis, arista alba, thorace abdomineque argenteo-tomentosis, tarsis albido-testaceis, alis limpidis, venis pallidis.

Female. Coal-black. Antennæ tawny, arista white; thorax and abdomen with bright silvery tomentum; tarsi whitish testaceous; wings limpid, veins pale. Length of the body 2 lines; of the wings 3½ lines.

Gen. SARGUS, Fabr.

14. Sargus metallinus, Fabr. See Vol. I. p. 110.

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15. SARGUS COMPLENS, n. s. Fœm. Rufescente-fulvus, capitis vertice nigro, antennis testaceis, abdomine fasciis latis abbreviatis piceis, tarsis posticis basi tibiisque posticis nigris, alis cinereis, basi subluridis, apud costam exteriorem nigro-fuscis.

Female. Reddish tawny. Head black above, testaceous beneath; antennæ testaceous; abdomen with four broad abbreviated piceous bands; legs tawny, hind tibiæ black with a tawny apical mark, hind tarsi black towards the base; wings greyish, slightly lurid towards the base, blackish-brown about the exterior part of the costa, veins black, tawny towards the base; halteres testaceous, tawny towards the tips. Length of the body 6 lines; of the wings 14 lines.

16. SARGUS ROGANS, n. s. Mas et Fœm. Capitis vertice nigro, antennis pedibusque testaceis, tibiis tarsisque posticis nigris, alis sub-cinereis apice obscuioribus. Mas. Luteo-testaceus. Fœm. Ferrugineus.

Male and Female. Head black above; antennæ and legs testaceous; hind tibiæ and hind tarsi black; wings greyish, darker towards their tips; veins black, tawny towards the base. Male. Lutescent testaceous. Female. Ferruginous; wings darker than those of the male. Length of the body 5 lines; of the wings 10 lines.

Gen. NERUA, n. g.

Fœm. Corpus longiusculum, sublineare. Caput transversum, thorace non latius. Antennæ breves; articulus tertius rotundus; arista apicalis, longa, tenuis, setiformis. Thorax productus. Scutellum spinis quatuor longiusculis. Abdomen depressum, sublineare, thorace vix latius, non longius. Pedes graciles, non longi. Alæ angustæ; venæ bene determinatæ.

Female. Body rather long, nearly linear. Head transverse, not broader than the thorax. Antennæ short; third joint round; arista apical, long, slender, setiform. Thorax long. Abdomen flat, thin, nearly linear, hardly broader and not longer than the thorax. Legs slender, not long. Wings narrow; veins distinctly marked, in structure like those of Cliellaria.

This genus may be distinguished from Culcua by the shape of the abdomen.

17. NERUA SCENOPNOÏDES, n. s. Fœm. Atra, nitens, antennis fulvis, scutelli spinis pedibusque albis, alis nigrocinereis, postice pallidioribus, venis nigris, halteribus testaceis.

Female. Coal-black, shining; antennæ tawny; thorax slightly tomentose; spines of the scutellum and legs white; wings blackish grey, paler towards the hind border, veins black; halteres testaceous. Length of the body 3 lines; of the wings 5 lines.

6*

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Gen. ADRAGA, n. g.

Mas. Corpus sublineare. Caput thorace non latius. Oculi connexi. Antennæ brevissimæ; articulus tertius rotundas; arista apicalis, gracilis, setiformis. Thorax sutura transversa bene determinata. Scutellum prominens, trigonum, marginatum. Abdomen thorace paullo brevius, non latius. Pedes breviusculi, validi, non dilatati. Alæ mediocres.

Male. Body nearly linear, rather thick. Head not broader than the thorax. Eyes connected. Antennæ very short; third joint round; arista apical, long, slender, setiform. Thorax with the transverse suture very distinct. Scutellum prominent, triangular, with a border. Abdomen a little shorter and not broader than the thorax. Legs stout, rather short, not dilated. Wings moderately broad; veins in structure like those of Clitellaria.

18. ADRAGA UNIVITTA, n. s. Mas. Nigra, subtilissime punctata, antennis piceis, thorace vitta cinerea, tarsis posterioribus albis, alis nigricantibus.

Male. Coal-black, hardly shining; antennæ piceous; thorax and abdomen very minutely punctured; thorax with a stripe of cinereous tomentum; posterior tarsi white; wings blackish, veins black. Length of the body 3 lines; of the wings 5 lines.

Gen. OBRAPA, n. g.

Fœm. Corpus breve, latum, crassum, convexum. Caput transversum, thorace angustius. Antennæ breves; articulus tertius rotundus; arista apicalis, gracilis, setiformis. Thorax sutura transversa bene determinata. Abdomen transversum, thorace paullo latius, valde brevius. Pedes breviusculi, validi; antici subdilatati. Alæ mediocres.

Female. Body short, broad, thick, convex. Head transverse, narrower than the thorax. Antennæ short; third joint round; arista apical, slender, setiform. Thorax with the transverse suture very distinct. Scutellum large, prominent, with a marginal suture. Abdomen transverse, a little broader than the thorax, and not more than half its length. Legs stout, rather short, the fore pair slightly dilated. Wings moderately broad, veins rather irregular; discal areolet large, quadrilateral; externomedial veins, subanal vein, and anal vein very slight; subanal vein and anal vein united at some distance from the border.

19. OBRAPA PERILAMPOÏDES, n. s. Fœm. Atra, nitens, subtilissime punctata, capite glabro, antennis piceis, tarsis posterioribus albidis, alis limpidis, venis albidis basi nigris, halteribus niveis.

Female. Deep black, shining, very minutely punctured; head smooth; antennæ piceous; posterior tarsi whitish, with black tips; wings limpid, veins whitish, black towards the base; halteres snow-white. Length of the body 2½ lines; of the wings 5 lines.

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20. OBRAPA CELYPHOÏDES, n. s. Fœm. Atra, nitens, subtilissime punctata, capite glabro, antennis piceis, tarsis albidis, alis nigro-cinereis, venis nigris, halteribus niveis.

Female. Deep black, very minutely punctured. Head smooth; antennæ piceous; tarsi whitish; wings blackish cinereous, veins black; halteres snow-white. Length of the body 2 lines; of the wings 4 lines.

Fam. TABANIDÆ, Leach.

Gen. TABANUS, Linn.

21. TABANUS RECUSANS, n. s. Fœm. Piceus, cinereo-subtomentosus, callo nigro angusto, antennis rufis apice nigris, humeris rufescentibus, abdomine basi glaucescente, tibiis obscure ferrugineis, alis nigro-fuscis, apice margineque postico cinereis.

Female. Piceous, slightly covered with cinereous tomentum. Callus of the head black, long, slender, entire; antennæ red, black towards the tips, angle of the third joint very small; thorax reddish on each side in front of the forewings; abdomen with glaucous tomentum towards the base; tibiæ mostly dark ferruginous; wings blackish-brown, cinereous towards the tips and along the hind border; veins black; forebranch of the cubital vein simple, very slightly undulating, its tip, like that of the radial vein, clouded with blackish-brown. Length of the body 6½ lines; of the wings 12 lines.

Fam. ASILIDÆ, Leach.

Subfam. DASYPOGONITES, Walk.

Gen. DASYPOGON, Fabr.

22. DASYPOGON INOPINUS, n. s. Fœm. Piceus, facie aurata, mystace parvo albo, antennis ferrugineis, apices versus nigris, capite transverso longioribus, articulo tertio lineari, pectore fasciis tribus canis, abdominis segmentis ferrugineo fasciatis, ahs luridis, apud costam nigro-fuscis, halteribus testaceis.

Female. Piceous. Face flat, brightly gilded; epistoma not prominent; mystax with a few white bristles; mouth black; antennæ ferruginous, black towards the tips, longer than the breadth of the head; third joint linear, longer than the first and the second together; pectus with three hoary bands; abdomen subclavate, nearly twice the length of the thorax; a ferruginous band on the hind border of each segment; legs mostly ferruginous; wings lurid, blackish-brown towards the costa, veins black; halteres testaceous. Length of the body 8 lines; of the wings 14 lines.

23. DASYPOGON HONESTUS, n. s. Lutescente-fulvus, capite, antennis, pedibus alisque nigris, thorace vitta schistacea nigro marginata vit-

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tisque duabus lateralibus cinereis, pectore postico nigro, abdomine —?, tibiis tarsisque posticis fulvis.

Luteous-tawny. Head, antennæ, hind part of the pectus, and legs black, shining; mystax with very few bristles; antennæ almost as long as the breadth of the head, third joint long, slender, linear; thorax with a slate-coloured blackish-bordered stripe, a short slate-coloured stripe on each side; abdomen wanting; hind tibiæ and tarsi tawny; wings blackish, veins black. Length of the body 4? lines; of the wings 7 lines.

Subfam. LAPHRITES, Walk.

Gen. LAPHRIA, Fabr.

24. Laphria scapularis, Wied. Auss. Zweifl. 1. 516. 29. Inhabits also Java.

25. Laphria aurifacies, Macq. See Vol. I. p. 10.

26. LAPHRIA GLORIOSA, n. s. Mas et Fœm. Aurata, capite pectoreque albis, abdomine purpureo, guttis lateralibus albis, basi viridi, lateribus pedibusque cyaneis, alis fuscis basi cinereis, halteribus testaceis.

Male and Female. Head and pectus with white tomentum and hairs; mystax with a few black bristles; mouth and antennæ black; third joint of the latter linear, conical at the tip, longer than the first and the second together; thorax with cupreous-gilded tomentum; abdomen purple, green at the base, blue and with a row of white dots along each side; legs blue; wings brown, cinereous towards the base, veins black; halteres testaceous. Male. Legs very thick and pilose. Length of the body 9 lines; of the wings 16 lines.

27. LAPHRIA SOCIA, n. s. Fœm. Cyaneo-viridis, capite aurato, antennarum articulo tertio longissimo subfusiformi, thoracis tomento subaurato, vitta media nuda, pectore argenteo, abdomine purpureo-cyaneo basi viridi maculis lateralibus argenteis, alis nigro-cinereis basi cinereis.

Female. Bluish-green. Head brightly gilded, hind part silvery; mystax with six long black bristles; third joint of the antennæ very elongate subfusiform; thorax with slightly gilded tomentum, excepting a broad bare middle stripe; pectus with silvery tomentum; abdomen purplish-blue, green towards the base, with spots of silvery tomentum along each side; hind borders of the ventral segments white; wings grey, blackish-grey for almost half the length from the tips and along three-fourths of the length of the hind border, veins black; halteres ferruginous. Length of the body 8½ lines; of the wings 16 lines.

28. LAPHRIA CONSOBRINA, n. s. Fœm. Purpurea, capite aurato, pectore argenteo, abdomine viridi-cyaneo, maculis lateralibus argenteis, alis nigricantibus basi cinereis.

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Female. Purple. Head brightly gilded, hind part silvery, underside with white hairs; mystax with six long black bristles; pectus with silvery tomentum; abdomen greenish blue, with spots of silvery tomentum along each side; hind borders of the ventral segments white; wings slightly grey, blackish for full half the length from the tips and along full three-fourths of the length of the hind border, veins black; halteres ferruginous, with black tips. Length of the body 7½ lines; of the wings 14 lines.

This species much resembles L. socia, but may be distinguished by the difference of colour, and more especially by the more undulating first branch vein, by the much less oblique third externo-medial vein, and by the subanal vein, which is united to the anal vein much nearer the border.

29. LAPHRIA SODALIS, n. s. Mas. Cyanea, capite aurato, antennarum articulo tertio fusiformi, thoracis lateribus purpureo-viridibus, pectore ventreque argenteis, abdomine maculis lateralibus argenteis, alis cinereis, apice posticeque nigricantibus.

Male. Blue. Head brightly gilded, vertex and hind part silvery, underside with white hairs; mystax with four long black bristles, and with several gilded bristles; third joint of the antennæ elongate-fusiform; sides of the thorax varied with green and purple; abdomen with spots of silvery tomentum along each side, underside and pectus silvery; wings grey, black towards the tips and along half the length of the hind border; halteres white. Length of the body 7 lines; of the wings 13 lines.

The veins of this species are hardly different from those of L. consobrina in structure, excepting the third externo-medial, which is united to the fourth nearer the border.

30. LAPHRIA COMES, n. s. Mas et Fœm. Viridi-cyanea, capite aurato, antennarum articulo tertio fusiformi, pectore ventrisque lateribus argenteis, abdomine viridi (mas) aut purpureo-cyaneo (fœm.) maculis lateralibus argenteis, alis nigricantibus basi cinereis.

Male and Female. Greenish blue. Head brightly gilded, hind part silvery; mystax with six long black bristles; third joint of the antennæ elongate-fusiform; pectus with silvery tomentum; abdomen green in the male, purplish-blue in the female, with silvery spots along each side, underside with two silvery stripes; wings blackish, grey at the base and along the costa for more than one-third of the length, veins and halteres black. Length of the body 6–6½ lines; of the wings 11–12 lines.

This may be only a small variety of L. consobrina; but the wings are not darker towards the costa as in that species, and the first branch-vein is much more straight.

31. LAPHRIA CONSORS, n. s. Mas et Fœm. Viridis (mas) aut cyanea (fœm.), capite aurato, antennarum articulo tertio brevifusiformi, pectore

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argenteo, abdomine æneo-viridi (mas) aut cyaneo-purpureo (fœm.) maculis lateralibus argenteis, alis nigricantibus, basi cinereis.

Male and Female. Green (male) or blue (female). Head gilded, hind part silvery; mystax with a few black bristles; third joint of the antennæ short-fusiform; pectus silvery; abdomen æneous-green in the male, bluish-purple in the female, with silvery spots along each side; wings blackish, grey at the base and along the costa for more than one-third of the length; veins and halteres black. Length of the body 4½–5 lines; of the wings 8–9 lines.

The straight and not oblique third externo-medial vein distinguishes this species from all the preceding Laphriæ.

32. LAPHRIA GERMANA, n. s. Fœm. Cyanea, facie aurata, antennarum articulo tertio longissime subfusiformi, abdominis maculis lateralibus pectoreque argenteis, alis cinereis, basi subcinereis, halteribus albis.

Female. Blue. Head gilded in front, vertex and hind part silvery; mystax with six black bristles; third joint of the antennæ very long, subfusiform; pectus silvery; abdomen purplish blue, shorter than in the preceding species, with silvery spots along each side; wings grey, slightly grey towards the base; halteres white. Length of the body 3½ lines; of the wings 7 lines.

33. LAPHRIA FLAGRANTISSIMA, n. s. Mas. Rufescente-cervina, capite aurato, antennis pedibusque rufescentibus, thorace vittis tribus latissimis (lateralibus abbreviatis) pectoreque nigricantibus, alis lutescentibus, plaga postica interiore fasciaque latissima exteriore nigricantibus.

Male. Reddish fawn colour. Head gilded; mystax with numerous gilded bristles; mouth lanceolate, very stout; antennæ reddish, third joint long, lanceolate, abruptly acuminated at the tip; thorax with three very broad blackish stripes; disk of the pectus black; abdomen with the segments darker towards the base, underside black towards the tip; legs reddish, stout; tarsi with black bands beneath; wings somewhat luteous, with a large blackish patch on the hind border near the base, and with a very broad blackish band near the tip; halteres testaceous. Length of the body 11 lines; of the wings 22 lines.

34. LAPHRIA JUSTA, n. s. Mas. Lutea, capite aurato, ore, antennis apice, thoracis maculis duabus posticis, pectore, abdominis fasciis latis femoribusque nigris, alis cinereis, apud costam luridis.

Male. Luteous. Head gilded; mystax with numerous gilded bristles; mouth short, black; antennæ reddish tawny, third joint lanceolate, black except at the base; thorax with the disk somewhat darker, two large black spots hindward; pectus black; abdomen linear, with a broad black band on the fore border of each segment; femora black above except at the tips, hind femora black also beneath; wings

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greyish, slightly clouded with dark grey, lurid along the costa for three-fourths of the length; halteres testaceous. Length of the body 8 lines; of the wings 14 lines.

35. LAPHRIA MANIFESTA, n. s. Mas et Fœm. Fulva, capite argenteo (mas) aut pallide aurato (fœm.), antennis apice nigris, thoracis disco et abdominis maculis subtrigonis subæneo-ferrugineis, scutello quadrisetoso, alis subcinereis.

Male and Female. Tawny. Head silvery in the male, pale-gilded in the female; mystax with several slender bristles; mouth lanceolate; third joint of the antennæ very elongate-subfusiform, black towards the tip; disk of the thorax and nearly triangular dorsal spots of the abdomen ferruginous with a slight æneous tinge; pectus testaceous, slightly silvery; wings slightly greyish; veins black, testaceous at the base, where the wings also have a testaceous tinge; halteres testaceous. Length of the body 4½–5 lines; of the wings 8–9 lines.

36. LAPHRIA APERTA, n. s. Fœm. Testacea, capite subargenteo, antennis abdominisque apice nigris, alis nigricantibus basi limpidis, halteribus albidis.

Female. Testaceous. Head with whitish slightly silvery tomentum; mystax with very few bristles; antennæ black, third joint long, linear, conical at the tip; thorax with a very indistinct darker stripe; abdomen black towards the tip; wings blackish, limpid towards the base; veins black, testaceous at the base; halteres whitish. Length of the body 4 lines; of the wings 7 lines.

37. LAPHRIA DECLARATA, n. s. Mas. Fulva, capite albo, facie argentea micante, antennis tibiisque posticis nigris, thorace atro, alis cinereis, venis nigris, halteribus testaceis.

Male. Tawny, slender. Head white, face brilliant silvery; mystax with four bristles; mouth black, short, slender; eyes flat in front; antennæ black, almost as long as the breadth of the head; third joint long, slender, lanceolate; thorax deep black; scutellum reddish tawny; hind tibiæ black, with tawny tips; wings greyish, veins black; discal veinlet and third externomedial vein forming one straight line, as in the genus Atomosia; halteres testaceous. Length of the body 3½ lines; of the wings 6 lines.

Subfam. ASILITES, Walk.

Gen. TRUPANEA, Macq.

38. TRUPANEA CONTRADICENS, n. s. Mas et Fœm. Nigricans, cinereo-subtomentosa, thoracis vittis pectoreque cano-tomentosis, pedibus nigris, tibiis rufis apice nigris, alis fusco-cinereis, areola radiali schistaceo vittata. Mas. Capite subaurato, barba testaceo-albida, abdominis segmentis lutescente marginatis. Fœm. Capite barbaque albidis, abdomine stylato, segmentis cano marginatis.

Male and Female. Blackish. Antennæ and legs black; thorax slightly

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covered with cinereous tomentum; stripes, pectus, and underside of the abdomen hoary; tibiæ red, with black tips; wings brownish grey; radial areolet with a slate-coloured stripe. Male. Head slightly gilded; mystax with a few black bristles and many gilded bristles; beard testaceous-whitish; sides of the abdomen and hind borders of the segments lutescent. Female. Head and beard whitish; mystax with many black bristles and a few white bristles; abdomen with an apical style, more than one-third of the length of the preceding part, sides and hind borders of the segments hoary. Length of the body 12–14 lines; of the wings 14–18 lines.

Gen. ASILUS, Linn.

39. Asilus longistylus, Wied. Auss. Zweifl. 1. 433. 13. Inhabits also Java.

Gen. OMMATIUS, Illiger.

40. OMMATIUS NOCTIFER, n. s. Mas. Niger, capite aurato, thoracis incisuris, scutello, pectore, segmentorum abdominalium marginibus ventreque canis, tibiis fulvis apice nigris, alis cinereis costa apiceque nigricantibus, halteribus ferrugineis.

Male. Black. Head gilded; mystax with a few black and several gilded bristles; sutures of the thorax, scutellum, sides, pectus, hind borders of the abdominal segments, and underside hoary; tibiæ tawny, with black tips; wings cinereous, blackish along the costa and towards the tips, veins black; halteres ferruginous. Length of the body 6–6½ lines; of the wings 11–12 lines.

41. OMMATIUS LUCIFER, n. s. Mas. Æneo-niger, capite argenteo, pectore albido, abdominis segmentis ferrugineo marginatis, pedibus testaceis, femoribus nigro-vittatis, tarsis nigris, alis limpidis apice nigricantibus costa atra apud medium incrassata, halteribus testaceis.

Male. Bronze-black. Head silvery in front; mystax with a few black and a few whitish bristles; pectus whitish; hind borders of the abdominal segments ferruginous; legs testaceous; femora striped with black; tarsi black, ferruginous at the base; wings limpid, blackish at the tips; costa deep black, incrassated in the middle; halteres testaceous. Length of the body 6 lines; of the wings 11 lines.

42. OMMATIUS RETRAHENS, n. s. Fœm. Cinereo-niger, facie argentea, pectore albido, pedibus testaceis, tarsis, femoribus tibiisque apice femoribusque posticis nigris, alis limpidis apice subcinereis, halteribus testaceis.

Female. Cinereous-black. Head silvery white in front; mystax with very few white and black bristles; pectus whitish; legs testaceous; tips of the anterior femora and of the middle tibiæ black; hind femora and hind tarsi black; anterior tarsi and hind tibiæ black, testaceous towards the base; wings limpid, slightly cinereous towards the tips;

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veins black; halteres testaceous. Length of the body 4 lines; of the wings 7 lines.

Gen. LEPTOGASTER, Meigen.

43. LEPTOGASTER FERRUGINEUS, n. s. Mas. Ferrugineus, pectore albo, abdomine nigro, segmentorum marginibus ventreque testaceis, pedibus fulvis, femoribus apice nigris, tibiis piceo vittatis, tibiis posticis tarsisque nigris basi testaceis, alis sublimpidis, halteribus testaceis apice piceis.

Male. Ferruginous. Head pale, gilded in front, hind side and pectus white; mouth and antennæ tawny, the latter blackish towards the tips; abdomen black; hind borders of the segments and under side testaceous; legs tawny; anterior femora with a testaceous band before the tips, which are black; hind femora and anterior tibiæ striped with piceous, the latter black towards the tips; tarsi and hind tibiæ black, testaceous at the base; wings very slightly greyish, veins black; halteres testaceous, piceous towards the tips. Length of the body 7 lines; of the wings 10 lines.

44. LEPTOGASTER LONGIPES, n. s. Mas. Ferrugineus, pectore albido, abdomine piceo, segmentis apice fulvescentibus, pedibus anterioribus fulvescentibus, posticis piceis longissimis, femoribus posticis basi testaceis, alis subcinereis basi obscurioribus costa venisque nigris, halteribus testaceis apice nigris.

Male. Ferruginous. Head testaceous in front; mouth and antennæ black; pectus whitish; abdomen piceous, hind borders of the segments somewhat tawny; legs somewhat tawny; hind legs piceous, very long, their femora testaceous at the base; wings slightly greyish, darker towards the base, costa and veins black; halteres testaceous, with black knobs. Length of the body 4 lines; of the wings 8 lines.

45. LEPTOGASTER ALBIMANUS, n. s. Mas. Niger, capite antico pectoreque albis, antennis basi ferrugineis, abdominis segmentis cano fasciatis, femoribus, tibiis tarsisque basi albis, femoribus posticis luteo fasciatis, alis limpidis, halteribus albidis apice piceis.

Male. Black. Head in front and the pectus white; antennæ ferruginous at the base; abdomen long, a hoary band on the hind border of each segment; femora, tibiæ, and tarsi white at the base; hind legs long, rather stout; hind femora with a luteous band; wings limpid, veins black; halteres whitish, with piceous knobs. Length of the body 5 lines; of the wings 7 lines.

Fam. LEPTIDÆ, Westw.

Gen. LEPTIS, Fabr.

46. Leptis ferruginosa, Wied. See Vol. I. p. 118.

Gen. CHRYSOPILA, Macq.

47. CHRYSOPILA VACILLANS, n.s. Mas et Fœm. Lutescens, capite

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nigro, thorace subvittato, abdominis segmentis nigro fasciatis, alis sublimpidis apud costam flavescentibus, venis fusco latissime marginatis, stigmate nigro-fusco.

Male and Female. Lutescent. Head of the female black, shining; thorax with two brown bands which are paler and indistinct hindward; abdomen with a broad black band on each segment; tarsi blackish towards the tips; wings nearly limpid, yellowish along the costa, veins exteriorly with very broad brownish borders, stigma blackish brown. Length of the body 3½ lines; of the wings 6 lines.

Fam. BOMBYLIDÆ, Leach.

Subfam. THEREVITES, Walk.

48. THEREVA CONGRUA, n. s. Mas. Nigra, glaucescente albo tomentosa, albo pilosa, capite argenteo, thorace trivittato et bilineato, pedibus nigris, femoribus albis, alis cinereis stigmate elongato venisque nigris.

Male. Black, with glaucous-white tomentum and with white hairs. Head silvery in front; thorax with three blackish brown stripes, the middle one with a dark stripe on each side, broader and more distinct than the lateral pair; abdomen beneath and legs black, femora white; wings grey, with an elongated black stigma and black veins; halteres black. Length of the body 5 lines; of the wings 8 lines.

Subfam. BOMBYLITES, Walk.

Gen. ANTHRAX, Fabr.

49. ANTHRAX PELOPS, n. s. Mas. Ferruginea, thoracis margine rufo piloso, pectore abdomineque nigris, abdomine fasciis duabus, maculis duabus apicalibus, plagaque ventrali subtrigona argenteis, alis cinereis, basi costaque nigris.

Male. Closely allied to A. Tantalus. Dark ferruginous. Head above, antennæ, pectus, abdomen, and legs black; thorax bordered with red hairs; pectus with a silvery dot on each side; abdomen with red hairs on each side at the base, with two silvery bands, with two silvery apical spots, and with a ventral, nearly triangular, silvery patch; wings cinereous, black at the base and along five-sixths of the length of the costa, veins and halteres black. Length of the body 8 lines; of the wings 18 lines.

50. Anthrax semiscita, Walk. See Vol. I. p. 118.

51. Anthrax degenera, Walk. See Vol. I. p. 15.

Gen. GERON, Meigen.

52. GERON SIMPLEX, n. S. Mas. Ater, antennis pedibusque nigris, alis subcineris, halteribus fulvis.

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Male. Deep black. Eyes bright red; proboscis a little longer than the thorax; antennæ and legs black; wings slightly greyish, veins black; halteres tawny. Length of the body 2½ lines; of the wings 5 lines.

Fam. EMPIDOÆ Leach.

Gen. HYBOS, Fabr.

53. HYBOS BICOLOR, n. S. Mas. Fulvus, ore antennisque testaceis, abdomine, femoribus posticis apice tibiisque anticis piceis, tarsis anterioribus ferrugineis, alis obscure cinereis.

Male. Tawny. Mouth and antennæ testaceous; abdomen, hind femora at the tips, and fore tibiæ piceous, anterior tarsi ferruginous; wings dark grey, veins black. Length of the body 3½ lines; of the wings 7 lines.

Fam. DOLICHOPIDÆ Leach.

Gen. PSILOPUS, Meigen.

54. Psilopus æneus, Fabr. Syst. Antl. 268. 9.

Inhabits also Java.

55. PSILOPUS BENEDICTUS, n. s. Mas et Fœm. Aureo-viridis, facie pectoreque argenteis, antennis testaceis apice nigris, thorace vittis tribus cupreis, abdomine fasciis cupreo-purpureis, maculis lateralibus albidis, pedibus testaceis tibiis posticis tarsisque nigris, alis subcinereis, costam versus et apud venas transversas nigrofuscis, halteribus testaceis. Fœm. Vertice cyaneo-purpureo, abdomine fasciis cyaneis.

Male and Female. Golden green. Face silvery; antennæ testaceous, black towards the tips, arista full as long as the thorax; thorax with three cupreous stripes; pectus silvery; abdomen with cupreous purple bands and with whitish spots along each side; legs testaceous, tarsi and hind tibiæ black; wings slightly greyish, blackish brown along the costa and about the transverse veins, veins black, fore branch of the præbrachial vein curved inward, discal transverse vein undulating; halteres testaceous. Female. Vertex bluish purple; abdomen with blue bands. Length of the body 4–4½ lines; of the wings 7–8 lines.

56. PSILOPUS LUCIGENA, n. s. Mas. Aureo-viridis, facie pectoreque argenteis, antennis tarsisque nigris, thorace vittis tribus rufo-cupreis, abdomine fasciis cupreo-purpureis, femoribus lutescentibus, tibiis piceis, femoribus anticis apice nigricantibus, alis nigris apice albis, halteribus fulvis apice nigris.

Male. Golden green. Face and pectus silvery; antennæ black, arista longer than the thorax; thorax with three broad reddish cupreous stripes; abdomen with broad cupreous purple bands; femora lutescent, tibiæ piceous, fore femora blackish towards the tips, tarsi

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black; wings black, tips snow-white, fore branch of the præbrachial vein slightly curved inward, discal transverse vein much curved outward; halteres tawny, with black tips. Length of the body 4½ lines; of the wings 9 lines.

57. Psilopus flavicornis, Wied. Auss. Zweifl. 11. 227. 31.

Inhabits also Sumatra.

58. PSILOPUS TERMINIFER, n. s. Mas. Aureo-viridis, vertice cyaneo-purpureo, facie pectoreque argenteis, antennis, pedibus halteribusque testaceis, abdomine apicem versus atro fasciis duabus cupreis, alis subcinereis apice nigris.

Male. Golden-green, slender. Vertex bluish-purple; face and pectus silvery; antennæ testaceous, arista about half the length of the body; fourth and fifth segments of the abdomen deep black with a cupreous band on the hind border of each segment, tip blue; legs and halteres testaceous; wings greyish, paler along the hind border, tips black, fore branch of the præbrachial vein slightly curved inward, discal transverse vein slightly undulating. Length of the body 3 lines; of the wings 5 lines.

59. PSILOPUS ORCIFER, n. s. Fœm. Purpureus, facie pectoreque subcinereis, antennis, pedibus halteribusque nigris, abdomine cyaneo-viridi segmentorum marginibus posticis purpureis, alis nigricantibus margine postico cinereo. Var. Viridis, vertice cyaneo, abdominis segmentis basi nigris.

Female. Purple, rather stout. Face and pectus slightly cinereous; antennæ, legs, and halteres black; abdomen bluish-green, hind borders of the segments purple; wings blackish, cinereous along the hind border, fore branch of the præbrachial vein forming an obtuse angle, discal transverse vein very undulating. Var. Green. Vertex blue; abdominal segments black at the base. Length of the body 2½ lines; of the wings 5 lines.

60. PSILOPUS EGENS, n. s. Mas et Fœm. Purpureus, facie pectoreque cyaneo-viridi cinereo subtomentosis, antennis, pedibus halteribusque nigris, metathorace viridi, abdomine cyaneo, suturis nigris, alis cinereis.

Male and Female. Purple. Face and pectus slightly covered with cinereous tomentum, the latter bluish-green; antennæ black, arista much more than half the length of the body; metathorax green; abdomen blue, sutures black; legs and halteres black; wings grey, fore branch of the præbrachial vein much curved inward, discal transverse vein straight; length of the body 2½–2¾ lines; of the wings 5 lines.

Gen. DOLICHOPUS, Latr.

61. DOLICHOPUS TRIGONIFER, n. s. Fœm. Cupreo-viridis, facie argentea, antennis, pedibus halteribusque testaceis, pectore, ventre ab-

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dominisque maculis lateralibus trigonis albidis, abdomine purpureo marginibus posticis nigris, tarsis posterioribus nigricantibus, alis cinereis.

Female. Cupreous green. Face silvery; antennæ, legs, and halteres testaceous; pectus, abdomen beneath, and triangular spots on each side whitish; abdomen purple, hind borders of the segments black; posterior tarsi blackish; wings grey, veins black, præbrachial vein forming a right angle at its flexure, between which and the border it is much curved inward, discal transverse vein very slightly curved outwards. Length of the body 3 lines; of the wings 5 lines.

This species resembles the Psilopi in the structure of the præbrachial vein.

Gen. DIAPHORUS, Meigen.

62. DIAPHORUS RESUMENS, n. s. Mas et Fœm. Obscure viridis (mas) aut niger (fœm.), facie pectoreque albidis, antennis piceis, abdomine nigro-cupreo basi obscure testaceo, pedibus anterioribus tibiisque posticis basi obscure testaceis, pedibus posticis nigris, alis nigricantibus apud margimem posticum pallidioribus, halteribus testaceis.

Male and Female. Dark green (male) or black (female). Face and pectus whitish; antennæ piceous; abdomen cupreous-black, dull testaceous towards the base; hind legs black, hind tibiæ towards the base and anterior legs dull testaceous; wings blackish, paler along the hind border, veins black, præbrachial vein and discal transverse vein straight; halteres testaceous. Length of the body 2 lines; of the wings 3½ lines.

Fam. SYRPHIDÆ, Leach.

Gen. CERIA, Fabr.

63. CERIA SMARAGDINA, n. s. Fœm. Saturate metallico-viridis, subtilissime punctata, faciei lateribus cupreis, antennis nigris, arista nivea, thorace bivittato, abdomine æneo-viridi, tarsis nigris, alis dimidio costali nigro, halteribus testaceis.

Female. Deep metallic green, very finely punctured. Head blue in front, sides of the face cupreous-purple; mouth, antennæ, and tarsi black; arista snow-white; thorax with two almost contiguous darker stripes; abdomen æneous green, with the exception of the petiole, which is very thick; wings slightly greyish, costal half black; halteres testaceous. Length of the body 7 lines; of the wings 14 lines.

64. CERIA RELICTA, n. s. Mas. Nigra, faciei lateribus, thoracis maculis quatuor humeralibus, pectoris fasciis duabus lateralibus, scutello, abdominis maculis duabus basalibus fasciisque duabus flavis, tibiis flavescentibus apice piceis, alis apud costam nigris, halteribus testaceis.

Male. Black. Head yellow beneath, and in front with the exception of a black stripe on the disk of the face; arista white; thorax with

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two yellow spots on each side in front; scutellum yellow; pectus with an oblique yellow band on each side; abdomen not petiolated, with a tumid yellow spot on each side at the base, hind borders of the third and fourth segments yellow; femora at the tips and tibiæ yellow, the latter piceous towards the tips, tarsi piceous; wings greyish-black towards the costa, excepting a lurid costal streak which extends along half the length from the base; halteres testaceous. Length of the body 6 lines; of the wings 11 lines.

65. CERIA RELICTA, n. s. Fœm. Nigra, faciei lateribus abdominisque fasciis duabus flavis, antennis ferrugineo variis, pedibus fulvis, alis cinereis costam versus nigris, halteribus stramineis.

Female. Black. Head yellow, beneath and in front with the exception of a black stripe on the disk of the face; first and third joints of the antennæ somewhat ferruginous, arista white; thorax with two indistinct yellowish marks on the transverse suture, hind border of the scutellum and hind borders of the second and third abdominal segments yellow; legs tawny, tibiæ paler towards the base; wings green, black for nearly half the breadth from the costa; halteres straw-colour. Length of the body 6 lines; of the wings 11 lines.

This may prove to be the female of C. relictura, notwithstanding its great difference from that species in the marks of the thorax and of the abdomen, and in the colour of the legs.

Gen. MICRODON, Meig.

66. MICRODON FULVICORNIS, n. s. Mas. Niger, aureo-subpubescens, antennis, abdomine, pedibus halteribusque fulvis, femoribus nigris, tibiis nigro vittatis, alis fuscis postice cinereis.

Male. Black. Head with gilded pubescence, cinereous behind and beneath; antennæ tawny, second joint above towards the tip and third joint piceous; thorax slightly covered with gilded tomentum; pectus with cinereous tomentum; abdomen with gilded tomentum towards the tip; legs tawny, femora mostly black, tibiæ with black stripes; wings cinereous, dark-brown about the costa, veinlet which bisects the subapical areolet incomplete, as it is also in the following species; halteres tawny. Length of the body 6 lines; of the wings 12 lines.

67. MICRODON APICALIS, n. s. Mas et Fœm. Niger, aureo-pubescens, thorace abdomineque fasciatis, pedibus halteribusque fulvis, alis nigro-fuscis postice obscure cinereis.

Male and Female. Black, with gilded tomentum, which forms two bands on the thorax, and one on each side of the pectus; abdomen with three gilded tomentose bands, the third subapical, first segment ferruginous beneath; legs tawny, femora at the base and coxæ black; wings blackish-brown, dark cinereous hindward; halteres tawny. Length of the body 5–6 lines; of the wings 10–12 lines.

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Gen. GRAPTOMYZA, Wied.

68. GRAPTOMYZA TIBIALIS, n. s. Mas. Testacea, vertice pectorisque fasciis duabus piceis, antennis supra nigris, abdominis lateribus fasciis duabus subtrigonis apiceque nigris, alis cinereis.

Male. Testaceous. Vertex and mouth piceous; epistoma with a piceous line on each side; third joint of the antennæ black above; abdomen black along each side and at the tip, and with two black bands which are angular in front; wings cinereous. Length of the body 3½ lines; of the wings 6 lines.

Gen. ERISTALIS, Latr.

69. Eristalis splendens, Leguillon, Voy. aut. du Monde; Macq. Dipt. Exot. 11. 2. 49. 28.

Inhabits also Solomon's Islands.

70. ERISTALIS RESOLUTUS, n. s. Mas et Fœm. Niger, capite antice albo, thorace vittis duabus fasciaque pectorisque disco cinereis, scutello fulvo, abdomine fasciis interruptis æneo-viridibus, tibiis basi fulvescentibus, alis fuscis (mas) aut obscure fuscis (fœm.) basi cinereis, halteribus testaceis.

Male and Female. Black. Head shining, with white tomentum beneath and on each side of the face; third joint of the antennæ piceous, arista simple; thorax with two cinereous stripes and with one cinereous band, somewhat chalybeous towards the scutellum, which is tawny; the band continued on each side of the pectus, whose disk is cinereous; abdomen with an interrupted æneous-green band on the second segment, third and fourth segments æneous-green, each with three large black spots; tibia somewhat tawny towards the base; wings brown (male) or dark brown (female), cinereous towards the base; halteres testaceous. Length of the body 6 lines; of the wings 10 lines.

71. ERISTALIS CONDUCTUS, n.s. Fœm. Niger, faciei lateribus albis, antennis, scutello, abdominis fasciis pedibusque testaceis, thorace antico albido, alis subcinereis apice obscurioribus.

Female. Black. Head shining, with white tomentum behind, beneath and on each side of the face; antennæ, scutellum, and legs testaceous, arista simple; thorax whitish in front, the whitish part continued in a short band on each side of the pectus; abdomen testaceous at the base and beneath, and with three testaceous bands; hind tibiæ with black tips; wings slightly greyish, darker towards the tips, cubital vein much less bent than usual; halteres testaceous. Length of the body 3½ lines; of the wings 6 lines.

72. ERISTALIS SUAVISSIMUS, n. s. Fœm. Fulvus, capite testaceo vertice nigro, thorace vittis quinque testaceis, abdomine nigro maculis sex lutescentibus, segmentorum marginibus posticis æneis, pedibus nigris testaceo fasciatis, alis sublimpidis punctis duobus costalibus nigris.

LINN. PROC.—ZOOLOGY. 7

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Female. Tawny. Head with testaceous tomentum, vertex black, shining; antennæ testaceous, arista simple; thorax with five testaceous stripes; peetus with two oblique testaceous bands on each side; abdomen black, with six somewhat luteous spots, the basal pair larger and darker than the middle pair, which are larger than the hind pair, apical segment with two testaceous points, hind borders of the segments æneous above, testaceous beneath; legs black, tibiæ at the base and tarsi testaceous; wings nearly limpid, costa with two black points; halteres testaceous. Length of the body 5½ lines; of the wings 10 lines.

73. ERISTALIS MUSCOÏDES, n. s. Mas. Cyaneo-viridis subchalybeus, capitis callo antennisque fulvis, faciei lateribus albo tomentosis, thorace subvittato, abdomine nigro maculis æneo-viridibus, pedibus nigris, alis subcinereis, halteribus albis.

Male. Bluish-green, with a slight chalybeous tinge. Face with white tomentum along each side, middle callus tawny, shining; antennæ pale tawny, arista plumose; thorax with three indistinct black stripes, the lateral pair oblique, callus on each side beneath pale tawny; abdomen black, second segment with a broad interrupted bluish green band, third segment with four æneous-green streaks, fourth segment also with four streaks which are united on the hind border, ventral segments whitish on each side; legs black; femora bluish black towards the base; wings slightly cinereous; halteres white. Length of the body 4 lines; of the wings 8 lines.

Gen. HELOPHILUS, Meigen.

74. Helophilus quadrivittatus, Wied. Auss. Zweifl. 11. 168. 22. (Eristalis).

Inhabits also Hindostan.

75. HELOPHILUS MESOLEUCUS, n. s. Fœm. Niger, faciei lateribus niveo tomentosis, thorace vittis quatuor canis, scutello, abdominis fascia antica latissima interrupta basique lutescentibus, alis cinereis, venis basi halteribusque fulvis.

Female. Black. Face with snow-white tomentum on each side; thorax with four hoary stripes; pectus with a cinereous disk; scutellum pale luteous; abdomen pale luteous at the base, and with a broad interrupted pale luteous band on the second segment, third and fourth segments somewhat chalybeous, the former livid along the fore border, under side with two lateral abbreviated pale luteous stripes; hind femora thick; wings grey, veins towards the base, and halteres, tawny. Length of the body 6½ lines; of the wings 12 lines.

Gen. XYLOTA, Meigen.

76. XYLOTA VENTRALIS, n. s. Fœm. Nigro-chalybea, capite albido tomentoso, scutello fulvo, vittis duabus ventralibus latis abbreviatis

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testaceis, pedibus piceo et testaceo variis, alis fuscis basi cinereis, halteribus testaceis.

Female. Blackish chalybeous. Head with whitish tomentum, excepting the callus on the vertex and another on the front; mouth and antennæ black; scutellum tawny; abdomen beneath with two very broad testaceous stripes extending from the base to two-thirds of the length; legs dingy testaceous, femora and hind tibiæ partly piceous, hind femora thick, piceous, slightly chalybeous, armed with spines beneath; wings dark brown, cinereous towards the base; halteres testaceous. Length of the body 4½ lines; of the wings 8 lines.

Gen. ORTHONEURA, Macq.

77. ORTHONEURA BASALIS, n. s. Fœm. Chalybeo-nigra, nitens, cano-subtomentosa, antennis ferrugineis basi fulvis articulo tertio elongato, tarsis posterioribus piceis, tarsis anticis tibiisque anterioribus fulvis, his nigro fasciatis, alis subcinereis fusco fasciatis, halteribus testaceis.

Female. Chalybeous-black, very shining, partly and slightly covered with hoary tomentum; antennæ tawny, third joint ferruginous, long, linear, tawny at the base; anterior tibiæ tawny with a black band, fore tarsi tawny, hinder tarsi piceous; wings greyish, with a sub-apical brown band which is abbreviated hindward, veins towards the base and halteres testaceous; alulæ whitish. Length of the body 3½ lines; of the wings 6 lines.

Gen. SYRPHUS, Fabr.

78. Syrphus ægrotus, Fabr. See Vol. I. p. 124.

79. Syrphus ericetorum, Fabr. Ent. Syst. iv. 287. 34.

Inhabits also Sierra Leone, Hindostan, and Java.

Fam. MUSCIDÆ, Latr.

Subfam. TACHINIDES, Walk.

Gen. MASICERA, Macq.

80. MASICERA NOTABILIS, n. s. Mas. Nigra, longiuscula, capite abdominisque fasciis albis, frontalibus atris, pectore cano, scutelli margine postico abdominisque lateribus ferrugineis, alis cinereis, venis fusco marginatis.

Male. Black, rather long, with long stout bristles; head white, silvery, with white hairs behind and beneath, frontalia deep black, widening slightly to the face, facialia without bristles, epistoma not prominent; eyes bare; palpi ferruginous at the tips; antennæ extending to the epistoma, third joint slightly widening towards the tip, nearly four times the length of the second, arista slender, very much longer than the third joint; pectus and sides of the thorax hoary, hind border of the scutellum ferruginous; abdomen fusiform, much longer

*

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than the thorax, with a broad slightly interrupted white band on the fore border of each segment, sides of the second and third segments slightly ferruginous; wings grey, veins black bordered with brown, præbrachial vein forming a slightly acute angle at its flexure, near which it is much curved inward, and is thence straight to its tip, discal transverse vein curved inward, parted by less than its length from the border, and by rather more than half its length from the flexure of the præbrachial; alulæ white; halteres testaceous. Length of the body 6 lines; of the wings 12 lines.

81. MASICERA? TENTATA, n. s. Nigra, cinereo-tomentosa, capite argenteo frontalibus atris, antennarum articulo tertio basi rufo, thorace quadrivittato, abdomine?, pedibus longiusculis, alis nigricantibus postice cinereis.

Black, with cinereous tomentum and with moderately stout bristles. Head silvery with white hairs behind and beneath, frontalia deep black, slightly widening towards the face, facialia without bristles, epistoma not prominent; antennæ extending nearly to the epistoma; third joint cinereous, slender, linear, red towards the base, rounded at the tip, more than four times the length of the second; arista slender, much longer than the third joint; thorax with four slender black stripes; scutellum not cinereous; abdomen wanting; legs rather long and slender; wings blackish, cinereous hindward and at the tips, veins black, præbrachial vein forming a very obtuse angle at its flexure, from whence it is almost straight to its tip, discal transverse vein slightly undulating, parted by much less than its length from the border, and by a little less than its length from the flexure of the præbrachial; alulæ large, yellowish white; halteres piceous. Length of the body 4? lines; of the wings 7 lines.

82. MASICERA SOLENNIS, n. s. Fœm. Nigra, breviuscula, cinereo-to-mentosa, capite albo, frontalibus atris, thorace quadrivittato, scutelli margine postico ferrugineo, abdomine subtessellato, alis cinereis.

Female. Black, rather short, with cinereous tomentum. Head white, with white hairs behind and beneath, frontalia deep black, widening towards the face, facialia without bristles, epistoma not prominent; eyes bare; antennæ almost reaching the epistoma, third joint cinereous, linear, rounded at the tip, more than four times the length of of the second, arista slightly stout towards the base, much longer than the third joint; thorax with four slender black stripes; scutellum ferruginous along the hind border; abdomen short-conical, with three broad interrupted cinereous bands; legs rather short; wings grey, veins black, præbrachial vein forming a slightly obtuse angle at its flexure, from whence it is almost straight to its tip, discal transverse vein nearly straight, parted by much less than its length from the border and by a little less than its length from the flexure of the præbrachial; alulæ cinereous. Length of the body 3 lines; of the wings 5 lines.

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83. MASICERA SIMPLEX, n. s. Fœm. Nigra, capite albo, frontalibus atris, thorace cinereo-tomentoso quadrivittato, abdomine fasciis cinereis late interruptis, alis cinereis.

Female. Black, with stout bristles. Head white, with white hairs beneath, frontalia deep black, linear, face oblique, facialia without bristles, epistoma not prominent; eyes bare; antennæ almost reaching the epistoma, third joint cinereous, linear, rather broad, almost truncated at the tip, about four times the length of the second, arista slender, very much longer than the third joint; thorax and pectus with cinereous tomentum, the former with four slender black stripes; abdomen shining, subelliptical, a little longer than the thorax, with a widely interrupted cinereous band on the fore border of each segment; legs stout; wings cinereous; veins black; præbrachial vein forming a very obtuse angle at its flexure, from whence it is straight to its tip, discal transverse vein almost straight, parted by hardly less than its length from the border, and by very much more than its length from the flexure of the præbrachial; alulæ white. Length of the body 3½ lines; of the wings 6 lines.

84. MASICERA GUTTATA, n. s. Fœm. Nigra, capite albo, frontalibus atris, thoracis vittis tribus pectoreque cinereis, abdomine guttis lateralibus albis, alis cinereis.

Female. Black, with short slight bristles. Head white, frontalia deep black, widening slightly towards the epistoma, face oblique, facialia without bristles, epistoma not prominent; antennæ reaching the epistoma, third joint linear, slightly truncated at the tip, full four times the length of the second, arista slender; thorax with three cinereous stripes; pectus cinereous; abdomen elongate-oval, a little longer than the thorax, a row of white dots along each side on the fore borders of the segments; wings cinereous, a little darker along the costa towards the base, veins black, præbrachial vein forming a very obtuse angle at its flexure, from whence it is almost straight to its tips; discal transverse vein straight, parted by more than its length from the border and by nearly twice its length from the flexure of the præbrachial; alulæ whitish. Length of the body 2½ lines; of the wings 4 lines.

Gen. EURYGASTER, Macq.

85. EURYGASTER TENTANS, n. s. Fœm. Nigra, latiuscula, cinereo tomentosa, capite albo, frontalibus atris, thorace vittis quatuor nigris, scutelli margine postico ferrugineo, abdomine subtessellato, alis cinereis apud costam subfuscis.

Female. Black, rather broad, with cinereous tomentum. Head white, with white hairs behind and beneath, frontalia deep black, narrow, widening towards the face, which is oblique, facialia with bristles along more than one-third of the length from the frontalia, epistoma not prominent; eyes pubescent, palpi ferruginous; antennæ ex-

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tending to the epistoma, third joint cinereous, hardly widening from the base to the tip, which is somewhat truncated, arista slender, very much longer than the third joint; thorax with four indistinct black stripes; scutellum ferruginous hindward; abdomen conical, not longer than the thorax, with three broad, slightly interrupted, cinereous bands, second segment indistinctly ferruginous on each side; legs stout; wings grey, slightly brownish in front, veins black, testaceous towards the base, præbrachial vein forming an obtuse angle at its flexure, hardly curved inward from thence to its tip, discal transverse vein very slightly undulating, parted by much less than its length from the border and from the flexure of the præbrachial; alulæ whitish. Length of the body 4½ lines; of the wings 8 lines.

86. EURYGASTER DECIPIENS, n. s. Fœm. Nigra, aureo-tomentosa, capite antico argenteo frontalibus atris, antennis ferrugineis, thorace vittis quatuor nigris, abdomine fulvo subtessellato vitta basali nigra, pedibus fulvis, alis cinereis.

Female. Black, stout, with gilded tomentum. Head silvery white in front and beneath, frontalia deep black, widening slightly towards the upright face, the bristles on each side hardly extending to the facialia, epistoma not prominent; eyes bare; antennæ ferruginous, extending to the epistoma, third joint linear, somewhat truncated at the tip, more than four times the length of the second joint, arista slender, much longer than the third joint; thorax with numerous long bristles, with four slight black stripes; pectus cinereous; abdomen tawny, conical, not longer than the thorax, with short stout bristles, and with three broad, slightly gilded, somewhat interrupted bands, a short black stripe at the base; legs tawny, stout, tibiæ darker than the femora, tarsi piceous; wings grey, somewhat darker in front, veins black, præbrachial vein forming a right angle at its flexure, near which it is much curved inward, discal transverse vein nearly straight, parted by more than half its length from the border, and by a little less than its length from the flexure of the præbrachial; alulæ slightly cinereous. Length of the body 4 lines; of the wings 7 lines.

87. EURYGASTER PHASIOïDES, n. s. Mas. Nigra, cano-tomentosa, capite albo frontalibus atris, antennis, scutello, abdomine femoribusque fulvis, abdomine fasciis duabus posticis albidis vittaque nigra, alis cinereis basi albis, costa plagaque nigricantibus.

Male. Black, with hoary tomentum. Head white, frontalia deep black, widening towards the upright face, facialia with bristles along more than half the length from the epistoma, which is not prominent; eyes bare; palpi testaceous; antennæ tawny, extending to the epistoma, third joint linear, slightly rounded at the tip, more than four times the length of the second joint, arista slender, much longer than the third joint; thorax with four very slender black stripes;

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abdomen tawny, short-oval, not longer than the thorax, with a black stripe which does not extend to the tip, third and fourth segments with a white band along each fore border; legs very stout, femora tawny; wings cinereous, white and with testaceous veins at the base, blackish along the costa, and with a broad black band which is abbreviated hindward, præbrachial vein forming an obtuse angle at its flexure, from whence it is very slightly curved inward to its tip, discal transverse vein nearly straight, parted by much less than its length from the border, and by hardly less than its length from the flexure of the præbrachial; alulæ whitish. Length of the body 3½ lines; of the wings 6 lines.

Subfam. DEXIDES, Walk,

Gen. RUTILIA, Desv.

88. Rutilia plumicornis, Guérin, Macq. Dipt. Exot. 11. 3. 82. 3. PI. 9. f. 8.

Inhabits also Offak, New Guinea.

89. RUTILIA ANGUSTIPENNIS, n. s. Fœm. Nigro-viridis, capite cinereo frontalibus atris, thoracis lateribus subpurpurascentibus, scutello purpureo, abdomine viridi basi purpureo, tibiis ferrugineis, alis angustis lanceolatis obscure fuscis basi nigris.

Female. Blackish-green. Head cinereous, frontalia deep black, widening much towards the face, epistoma very prominent, arista stout, bare; thorax with almost obsolete stripes, purplish along each side; scutellum mostly purple; abdomen dark green, purple at the base; legs black, tibiæ ferruginous; wings narrow, lanceolate, dark brown, black towards the base, præbrachial vein forming a much rounded angle at its flexure, near which it is slightly curved inward, and is thence straight to its tip, discal transverse vein very slightly undulating, parted by less than half its length from the border, and by much more than half its length from the flexure of the præbrachial; alulæ dark brownish cinereous. Length of the body 8 lines; of the wings 16 lines.

Gen. DEXIA, Meigen.

90. DEXIA PECTORALIS n. s. Fœm. Testacea, capite pectoreque albis frontalibus atris, antennis fulvis, thorace cinereo vittis quatuor nigris, abdomine fulvo apicem versus spinoso fasciis duabus nigris, pedibus longis tibiis tarsisque nigris, alis cinereis venis subfusco late marginatis.

Female. Testaceous. Head white, frontalia deep black, widening towards the face, facialia without bristles, epistoma prominent; antennæ tawny, not reaching the epistoma, third joint of the antennæ long, linear, arista plumose; thorax cinereous, with four black stripes, of which the inner pair are much narrower than the outer pair; scu-

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tellum tawny hindward; pectus white; abdomen tawny, with a few spines towards the tip, hind borders of the third and fourth segments and tips black; legs long, black, coxæ and femora testaceous; wings grey, veins very broadly bordered with pale brown, præbrachial vein forming a slightly obtuse angle at its flexure, between which and its tip it is slightly curved inward, discal transverse vein undulating, parted by about half its length from the border, and by a little less than its length from the flexure of the præbrachial; alulæ cinereous Length of the body 4 lines; of the wings 9 lines.

Gen. PROSENA, St.-Farg.

91. PROSENA ARGENTATA, n. s. Mas et Fœm. Testacea (mas) aut nigra (foem.), capite thoraceque argenteis, antennis fulvis, abdomine longo fasciis vittaque nigris (mas) aut breviore fasciis cinereis lateribusque basi testaceis (fcem.), pedibus nigris femoribus testaceis, alis subfuscescentibus (mas) aut cinereis (foem.).

Male and Female. Head and thorax with bright silvery tomentum, facialia without bristles, epistoma slightly prominent; eyes bare; mouth black, testaceous towards the base, full as long as the thorax; antennæ tawny, not reaching the epistoma, arista plumose; legs black, coxæ and femora testaceous; wings grey, veins black. Male. Testaceous. Pectus mostly white; abdomen elongate-conical, with slight whitish reflexions, dorsal stripe and hind borders of the segments black; legs long; wings brownish towards the costa and about the veins, præbrachial vein forming a slightly obtuse angle at its flexure, between which and its tip it is very slightly curved inward, discal transverse vein hardly undulating, parted by less than half its length from the border, and by less than its length from the flexure of the præbrachial. Length of the body 5 lines; of the wings 10 lines. Female. Black. Pectus silvery; scutellum deep black; abdomen conical, with broad cinereous bands, first and second segments with broad interrupted testaceous bands, a testaceous mark on each side of the third segment at the base; legs rather long, femora with black tips; præbrachial vein forming a right angle at its flexure, curved inward from thence to its tip, discal transverse vein curved inward near its hind end, parted by less than its length from the border and from the flexure of the præbrachial. Length of the body 3½lines; of the wings 7 lines.

Subfam. SARCOPHAGIDES, Walk.

Gen. SARCOPHAGA, Meigen.

92. SARCOPHAGA COMPTA, n. s. Fœm. Nigra, cinereo-tomentosa, capite aurato subtus fulvo piloso, thorace vittis tribus nigris, abdomine tessellato, alis obscure cinereis.

Female. Black, with cinereous tomentum. Head gilded in front, clothed behind and beneath with tawny hairs, frontalia deep black,

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hardly widening towards the face; thorax with three black very distinctly marked stripes, the middle one dilated on the scutellum; abdomen distinctly tessellated with six large cinereous excavated spots; wings grey, præbrachial vein forming a right angle at its flexure, near which it is much curved inward, and is thence straight to its tip, discal transverse vein hardly undulating, parted by much less than its length from the border, and by little more than half its length from the flexure of the præbrachial; alulæ white. Length of the body 5 lines; of the wings 10 lines.

93. SARCOPHAGA INVARIA, n. s. Mas et Fcem. Nigra, cinereo-tomentosa, capite maris albo, thorace vittis quinque nigris, abdomine tessellato, alis cinereis.

Male and Female. Black, with cinereous tomentum. Thorax with five black stripes, the lateral pair incomplete; abdomen distinctly tessellated, the spots being much excavated; wings grey, præbrachial vein forming a right angle at its flexure, near which it is much curved inward, and is thence straight to its tip, discal transverse vein hardly undulating, parted by much less than its length from the border, and by rather more than half its length from the flexure of the præbrachial; alulæ white. Male. Head silvery white, frontalia deep black, linear; tomentum of the thorax and of the abdomen more whitish than that of the female. Female. Frontalia slightly widening towards the face. Length of the body 4–4½ lines; of the wings 8 lines.

Subfam. MUSCIDES, Walk.

Gen. IDIA, Meigen.

94. Idia australis, Walk. Cat. Dipt. pt. 4. 809.

Inhabits also Australia.

95. IDIA ÆQUALIS, n. s. Foem. Ænea, capite subtuberculato, thoracis lateribus pectoreque albido-testaceis lineis duabus lateralibus æneis, abdomine fulvo fasciis tribus æneis, pedibus testaceis tibiis apice femoribusque æneis, alis cinereis apice nigricantibus.

Female. Æneous-whitish, testaceous beneath. Head with minute tubercles on each side of the front, frontalia piceous, linear; thorax with an æneous stripe on each side in a line with the base of the wings, and with numerous points between these lines and the disk; abdomen pale tawny, with three æneous bands on the hind borders of the segments; legs testaceous, tibiæ towards the tips and femora æneous; wings greyish, with blackish tips, præbrachial vein forming an obtuse and much-rounded angle at its flexure, from whence it is almost straight to its tip, discal transverse vein parted by about half its length from the border and by about its length from the flexure of the præbrachial; alulæ very slightly cinereous; halteres testaceous. Length of the body 3½lines; of the wings 6 lines.

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Gen. MUSCA, Linn.

96. MUSCA GLORIOSA, n. s. (genus Silbomyia, Macq.). Fœm. Cyaneo-viridis, capite lætissime aurato frontalibus atris, antennis pedibusque nigris, thorace vittis quatuor cupreis, pectore maculis quatuor albis, abdomine viridi-cyaneo, vitta tenui purpurea, alis cinereis apud costam nigris, alulis albis.

Female. Golden green. Head brilliantly gilded, frontalia deep black, widening towards the face; a brilliantly-gilded lanceolate streak between the antennæ, which are black; epistoma piceous, slightly prominent; thorax with four cupreous stripes; pectus with four white tomentose spots; abdomen greenish blue with a very slender purple stripe; legs black, femora blackish green; wings grey, black for full one-third of the breadth from the costa, præbrachial vein forming a very obtuse angle at its flexure, from whence it is nearly straight to its tip, discal transverse vein very slightly undulating, parted by less than half its length from the border, and by more than half its length from the flexure of the præbrachial; alulæ pure white. Length of the body 6 lines; of the wings 12 lines.

97. MUSCA OPULENTA, n. s. (genus Silbomyia, Macq.) Fœm. Aureo-viridis, capite aurato, frontalibus atris, antennis piceis, thorace vittis quatuor subobsoletis cupreis, pectore maculis duabus albis, alis cinereis apud costam nigris, alulis albis.

Female. Golden green. Head brightly gilded, frontalia deep black, linear, epistoma piceous, slightly prominent; antennae piceous; thorax with four almost obsolete cupreous stripes; pectus with a spot of white tomentum on each side; abdomen with a very indistinct cupreous stripe; tibiæ and tarsi black; wings grey, black along the costa, præbrachial vein forming a right angle at its flexure, near which it is slightly curved inward, and is thence straight to its tip, discal transverse vein undulating, parted by more than half its length from the border and from the flexure of the præbrachial; alulæ white. Length of the body 4½ lines; of the wings 8 lines.

98. MUSCA MACULARIS, n. s. (genus Chrysomyia? Desv.) Mas et Fœm. Aureo-viridis, capite argenteo antice aurato frontalibus atris, antennis pedibusque nigris, thorace vittis tribus cupreis vix conspicuis, scutello cyaneo, pectore maculis quatuor lateralibus albo tomentosis, abdomine viridi-cyaneo maculis quatuor lateralibus albis, alis cinereis basi nigricantibus, alulis nigricantibus.

Male and Female. Golden green. Head brightly gilded, white behind; antennæ, tibiæ, and tarsi black; thorax with three indistinct cupreous stripes; scutellum blue; pectus with two white tomentose spots on each side; abdomen greenish blue with two transverse white spots on each side; femora blackish-green; wings grey, blackish at the base, præbrachial vein forming a slightly obtuse angle at its flexure, nearly straight from thence to its tip, discal transverse vein curved

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outward towards its fore end, parted by about half its length from the border, and by much less than its length from the flexure of the præbrachial; alulæ blackish. Female. Head with a silvery white vertex, frontalia deep black, linear. Length of the body 56 lines; of the wings 10–12 lines.

99. MUSCA MARGINIFERA, n. s. (genus Lucilia, Desv.) Foelig;m. Viridi-cyanea, capite albido frontalibus atris, antennis pedibusque nigris, abdominis segmentis purpureo marginatis, alis cinereis basi subnigri-cantibus, alulis cinereis.

Female. Greenish-blue. Head whitish, frontalia deep black, linear, face and third joint of the antennæ cinereous; abdomen with a purple band on the hind border of each segment; legs black; wings grey, almost blackish at the base, præbrachial vein forming a hardly obtuse angle at its flexure, between which and its tip it is hardly curved inward, discal transverse vein nearly straight, parted by about half its length from the border, and by more than half its length from the flexure of the præbrachial; alulæ cinereous. Length of the body 4½ lines; of the wings 9 lines.

100. MUSCA BENEDICTA, n. s. (genus Pyrellia, Desv.) Mas. Aureo-viridis, capite albo, antennis pedibusque nigris, alis cinereis basi subluridis venis basi fulvis, alulis testaceo-cinereis, Var.? Abdominis apice purpureo.

Male. Golden green. Head white in front; antennæ and legs black; wings cinereous, slightly lurid towards the base, veins tawny towards the base, præbrachial vein curved at the flexure, almost straight from thence to the tip, discal transverse vein slightly undulating, parted by full half its length from the border, and by little less than its length from the flexure of the præbrachial; alulæ cinereous with a testaceous tinge. Var.? or a distinct species: darker; abdomen purple at the tip. Length of the body 3 lines; of the wings 6 lines.

101. MUSCA OBTRUSA, n. s. (genus Pyrellia, Desv.) Mas et Fœm. Purpureo-cyanea, antennis pedibusque nigris, alis cinereis, alulis ob-scurioribus.

Very nearly allied to M. refixa and to M. perfixa, but differing slightly ín the veins of the wings. Male and Female. Blue, more or less mingled with purple. Head black, slightly cinereous in front; antennæ and legs black; wings grey, veins black, præbrachial vein forming an almost angular curve at its flexure, nearly straight from thence to its tip, discal transverse vein very slightly undulating, parted by little more than half its length from the border, and by about its length from the flexure of the præbrachial; alulæ dark cinereous. Length of the body 2½–3 lines; of the wings 5–6 lines.

102. Musca domestica, Linn. See Vol. I. p. 128.

103. MUSCA OBSCURATA, n. s. Fœm. Nigra, subcinerascens, capite postico albo, thorace vittis quatuor angustis nigris, abdomine tessel-

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lato, alis obscure cinereis apud costam nigricantibus, alulis testaceo-cinereis.

Female. Black, slightly covered with cinereous tomentum. Head white behind; thorax with four slender black stripes; abdomen distinctly tessellated with four rows of cinereous reflecting spots; wings very dark grey, blackish towards the costa, præbrachial vein forming a somewhat rounded and very slightly obtuse angle at its flexure, hardly curved inward from thence to its tip, discal transverse vein slightly undulating, parted by less than half its length from the body, and by more than half its length from the flexure of the præbrachial; alulæ cinereous, with a testaceous tinge. Length of the body 3½ lines; of the wings 7 lines.

104. MUSCA PATIENS, n. s. Fœm. Nigra, cinereo-tomentosa, frontalibus antennisque piceis, thorace vittis quatuor tenuissimis nigris, abdomine tessellato, alis cinereis.

Female. Black, with cinereous tomentum. Head whitish behind, frontalia piceous, linear; antennæ piceous; thorax with four very slender black stripes; abdomen tessellated; wings grey, veins black, præbrachial vein forming an obtuse and somewhat rounded angle at its flexure, from whence it is hardly curved inward to its tip, discal transverse vein undulating, parted by less than half its length from the border, and by more than half its length from the flexure of the præbrachial; alulæ slightly cinereous, with testaceous borders. Length of the body 3 lines; of the wings 6 lines.

105. MUSCA ERISTALOÏDES, n. s. (genus Pollenia? Desv.) Mas et Fœm. Aureo tomentosa, crassa, subtus testacea, capite antico albo frontalibus antice rufis, antennis piceis basi rufis, thorace vittis tribus abbreviatis fulvis, scutello cyaneo, abdomine cyaneo basi fasciisque duabus albis, pedibus fulvis, tibiis tarsisque nigris, alis cinereis apud costam fuscescentibus. Var. mas. Minor, thorace vittis tribus nigris.

Male and Female. Body thick; head white; frontalia of the female piceous, linear, red in front; epistoma prominent; proboscis long; palpi whitish; antennæ piceous, red at the base; thorax with gilded tomentum, and with three tawny bands which are abbreviated hind-ward, scutellum blue; pectus testaceous; abdomen blue, white at the base and with two white bands on the 3rd and 4th segments, 1st segment with a transverse blue spot on each side; legs tawny, tibiæ and tarsi black; wings grey, blackish along the exterior part of the costa, præbrachial vein forming a right but rounded angle at its flexure, near which it is curved inward and is thence straight to its tip, discal transverse vein slightly undulating, parted by a little more than half its length from the border, and by much more than half its length from the flexure of the præbrachial; alulæ testaceous. Var. Male. Smaller; thorax with three black stripes; abdomen with only

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one white band, which is on the 4th segment. Length of the body 4–5 lines; of the wings 8–10 lines.

Gen. BENGALIA, Desv.

106. BENGALIA SPISSA, n. s. Mas et Fœm. Fulva, capite nigro antice albo, antennis testaceis, pectore fasciis duabus obliquis albidis, pedibus nigris femoribus basi coxisque fulvis, alis cinereis.

Male and Female. Tawny. Head black, with silvery tomentum in front, epistoma not prominent; palpi black; antennæ testaceous; pectus with an oblique whitish band on each side; legs black, femora towards the base and coxæ tawny; wings grey, veins black, testaceous towards the base, præbrachial vein forming an obtuse and rounded angle at its flexure, which is very near the border of the wing, straight from thence to its tip, discal transverse vein straight, parted by much less than its length from the border, and by very much more than its length from the flexure of the præbrachial; alulæ testaceous. Length of the body 3½ lines; of the wings 7 lines.

Subfam. ANTHOMYIDES, Walk.

Gen. ARICIA, Macq.

107. ARICIA SIGNIFICANS, n. s. Mas et Fœm. Fulva, subtus testacea, capite nigro argenteo-tomentoso, antennis testaceis, thorace vittis tribus albidis, abdominis apice piceo, alis cinereis.

Male and Female. Tawny, testaceous beneath. Head black, with silvery tomentum, vertex much broader in the female than in the male; palpi tawny; antennæ testaceous; thorax with three whitish stripes in the disk, and with one on each side; abdomen piceous at the tip; tarsi blackish towards the tips; wings cinereous, veins black, tawny towards the base, discal transverse vein hardly undulating, parted by more than its length from the præbrachial transverse, and by less than its length from the border; alulæ pale cinereous, with testaceous borders. Length of the body 4 lines; of the wings 7 lines.

108. ARICIA CANIVITTA, n. s. Fœm. Fulva, subtus testacea, capite nigro, facie argentea, palpis antennisque testaceis, thoracis disco, abdominis plagis duabus trigonis pedibusque nigris, thorace vitta cana, alis cinereis.

Female. Tawny, testaceous beneath. Head black, face silvery; palpi and antennæ testaceous; disk of the thorax blackish, with a broad hoary stripe; disk of the scutellum piceous; second and third segments of the abdomen with triangular black bands; legs black, coxæ and trochanters testaceous; wings grey, veins black, discal transverse vein hardly curved inward, parted by more than half its length from the border, and by a little less than its length from the præbrachial transverse; alulæ pale cinereous, with testaceous borders. Length of the body 3½ lines, of the wings 7 lines.

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Gen. ANTHOMYIA, Meigen.

109. ANTHOMYIA PROCELLARIA, n. s. Mas. Nigra, subtus albida, capite argenteo, thorace fasciis duabus (prima interrupta) albis, abdomine vitta tenui fasciisque interruptis albidis, alis cinereis, halteribus testaceis.

Nearly allied to A. pluvialis and to A. tonitrui. Male. Black, whitish beneath. Head silvery; thorax with two whitish bands, the first interrupted in the middle, widened on each side; scutellum elongate; abdomen with a slender whitish stripe, and with interrupted whitish bands, which are widened on each side; wings grey, veins black, discal transverse vein nearly straight, parted by less than half its length from the border and by hardly less than its length from the præbrachial transverse; alulæ grey, with testaceous borders; halteres testaceous. Length of the body 3 lines; of the wings 6 lines.

Gen. CÆNOSIA, Meigen.

110. CÆNOSIA LUTEICORNIS, n. s. Mas. Cana, capite antennisque pallide luteis, abdomine basi testaceo maculis octo nigris, pedibus halteribusque testaceis, alis sublimpidis apice nigris.

Male. Hoary. Head pale luteous, frontalia darker, widening towards the face; palpi white; antennæ pale luteous, extending to the epistoma, third joint long, slender, linear, arista plumose for half the length from the base; abdomen testaceous towards the base, with four dorsal black spots and with two black spots on each side towards the tip; legs testaceous; wings nearly limpid, with a black apical spot, discal transverse vein nearly straight, parted by less than its length from the border and by very much more than its length from the præbrachial transverse; alulæ white; halteres testaceous. Length of the body 3 lines; of the wings 5 lines.

Subfam. HELOMYZIDES, Fallen.

Gen. CœLOPA, Meigen.

111. CœLOPA INCONSPICUA, n. s. Fœm. Cinerea, antennis piceis, pectore antico, abdomine pedibusque fulvis, his nigro variis, alis cinereis, halteribus testaceis.

Female. Cinereous, flat. Antennæ piceous; fore part of the pectus, abdomen and legs tawny, the latter with diffuse blackish bands; wings grey, veins black, with the usual structure, tawny towards the base; halteres testaceous. Length of the body 2 lines; of the wings 3½ lines.

Gen. XARNTA, Walk.

112. Xarnuta leucotelus, Walk. See Vol I. p. 28.

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Gen. HELOMYZA, Fallen.

113. HELOMYZA PICIPES, n. s. Foelig;m. Fulva, capite, antennis femoribusque nigris, abdominis segmentis nigro marginatis, tibiis tarsisque piceis, alis cinereis apud costam luridis vena discali transversa fusco subnebulosa, halteribus testaceis. Var. Thoracis vitta lata abdomineque piceis.

Female. Tawny. Head and antennæ black, arista plumose; thorax with two slender, darker, almost obsolete stripes; hind borders of the abdominal segments black; legs piceous, femora black, coxæ tawny; wings grey, with a lurid tinge towards the costa, discal transverse vein straight, slightly clouded with brown, parted by about half its length from the border, and by more than twice its length from the præbrachial transverse; halteres testaceous. Var. Thorax With a broad piceous stripe; abdomen piceous. Length of the body 3 lines; of the wings 6 lines.

114. HELOMYZA ATRIPENNIS, n. s. Mas. Fulva, scutello nigro, pectore piceo, abdomine ferrugineo, alis nigris postice cinereis.

Male. Tawny. Antennæ pale tawny, arista plumose; thorax with two slender, darker, almost obsolete stripes; scutellum black; pectus piceous; abdomen ferruginous; wings black, cinereous along the hind border for more than half its length from the base, veins as in the preceding species. Length of the body 2½ lines; of the wings 5 lines.

115. HELOMYZA RESTITUTA, n. s. Fœm. Testacea, abdomine punctis sex nigris, alis cinereis apice nigricantibus venis transversis nigricante nebulosis.

Female. Testaceous. Third, fourth, and fifth segments of the abdomen with two black points on each fore border; wings grey, with a slight lurid tinge towards the costa, blackish at the tips, transverse veins clouded with blackish, veins with the usual structure. Length of the body 2½ lines; of the wings 5 lines.

Gen. DRYOMYZA, Fallen.

116. DRYOMYZA SEMICYANEA, n. s. Fœm. Ferruginea, vertice piceo, antennis fulvis, thorace cyanescente, abdomine cyaneo basi ferrugineo, pedibus testaceis, alis subcinereis apud costam luridis.

Female. Ferruginous. Vertex piceous, face slightly covered with whitish tomentum; antennæ tawny, arista very minutely pubescent; thorax tinged with blue; abdomen blue, tawny at the base; legs testaceous; wings greyish, lurid along the costa, veins tawny, præbrachial vein forming a very slight angle where it joins the discal transverse, with a slight curve from thence to its tip, præbrachial transverse stout, slightly clouded, discal transverse straight, upright, parted by much less than half its length from the border and by a

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little more than its length from the præbrachial transverse; halteres testaceous. Length of the body 3½-4½ lines; of the wings 7-9 lines.

Gen. SEPEDON, Latr.

117. SEPEDON COSTALIS, n. s. Mas. Cinerea, capite testaceo guttis quatuor nigris, antennis nigris basi testaceis arista alba, abdomine pedibusque fulvis femoribus posticis denticulatis, alis fuscescenti-cinereis, costa testacea.

Male. Cinereous. Head testaceous, with a black dot on each side above and two more towards the mouth; antennæ black, testaceous at the base, second joint very long, arista white; thorax with four slender indistinct darker lines, pectus hoary; abdomen and legs tawny, tarsi piceous, hind femora denticulated; wings brownish cinereous, slightly testaceous along the costa; halteres testaceous. Length of the body 4 ½ lines; of the wings 8 lines.

Subfam. LAUXANIDES, Walk.

Gen. LAUXANIA, Latr.

118. LAUXANIA DUPLICANS, n. s. Fœm. Nigro-cyanea, antennis piceis, articulo tertio longissimo, tarsis basi albidis, tibiis intermediis sordide albidis, alis limpidis.

Female. Blackish-blue, shining. Antennæ piceous, third joint very long, reddish beneath, arista bare; legs black, tarsi whitish towards the base, middle tibiæ dingy whitish; wings limpid, veins pale, discal transverse vein white, parted by a little less than its length from the border and by nearly twice its length from the præbrachial transverse; halteres white. Length of the body 2-2½ lines; of the wings 3-4 lines.

119. LAUXANIA MINUENS, n. s. Fœm. Nigra, nitens, antennis longis arista nuda, tarsis albidis, alis sublimpidis, halteribus albis.

Female. Black, shining. Third joint of the antennæ long, arista bare; tarsi whitish; wings very slightly greyish, veins pale, of the usual structure; halteres white. Length of the body 1¼ line; of the wings 2½ lines.

Gen. LONCHÆA, Fallen.

120. LONCHÆA? INOPS, n. s. Mas et Fœm. Nigra, nitens, antennis piceis arista plumosa, scutello ferrugineo, tibiis, tarsis halteribusque fulvis, alis subcinereis.

Male and Female. Black, shining. Antennæ piceous, third joint short, arista plumose; scutellum somewhat ferruginous; tibiæ, tarsi, and halteres tawny; wings slightly greyish, veins pale, discal transverse vein parted by much less than its length from the border and by nearly twice its length from the flexure of the præbrachial. Length of the body 1½ line; of the wings 3 lines.

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Subfam. ORTALIDES, Haliday.

Gen. LAMPROGASTER, Macq.

121. LAMPROGASTER QUADRILINEA, n. s. Mas et Fœm. Cyaneo-viridis; capite pedibusque nigris; antennis piceis, basi rufis; thorace vittis quatuor albidis; abdomine purpureo-cyaneo; alis limpidis, litura basali, fasciis duabus (prima abbreviata, secunda interrupta) strigaque costali apicali nigris.

Male and Female. Bluish green. Head black; proboscis red at the tip; antennæ piceous, red at the base; thorax with two whitish stripes on each side; abdomen purplish blue; legs black, tarsi with pale tomentum towards the base; wings limpid, two black streaks, one basal including a limpid dot, the other apical, first band oblique, extending from the costa to the disk, second widely interrupted in the middle, its hind part occupying the discal transverse vein; veins black, testaceous along the costa; præbrachial vein forming a slight angle at its junction with the discal transverse, the latter parted by not more than one-fourth of its length from the border, and by more than its length from the præbrachial transverse. Length of the body 3½–4½ lines; of the wings 7–9 lines.

122. LAMPROGASTER MARGINIFERA, n. s. Fœm. Testacea; capite maculis duabus fasciaque nigro-æneis; thoracis disco nigro-æneo, vittis tribus testaceis, vittis duabus lateralibus albidis, scutelli margine testaceo; abdominis dorso nigro-æneo; alis limpidis, fasciis plurimis fuscis.

Female. Testaceous. Head with two blackish æneous spots on the vertex, and with a blackish æneous band in front; mouth and antennæ tawny; disk of the thorax blackish æneous, with three testaceous stripes which are united in front, the middle one slender, the lateral pair united on the border of the scutellum, a whitish stripe on each side; abdomen blackish æneous above; wings limpid, with eight or nine irregular brown bands; veins black, testaceous along the costa; discal transverse vein parted by much less than its length from the border, and by about its length from the præbrachial transverse. Length of the body 4 lines; of the wings 9 lines.

123. LAMPROGASTER DELECTANS, n. s. Fœm. Ferruginea; capite testaceo, postice albido, vertice luteo fasciis duabus nigris, vittis quatuor anticis antennisque nigris; thorace vittis septem et metathoracis fascia albidis; abdomine cyaneo-viridi, basi discoque fulvis; pedibus nigricantibus, femoribus testaceis apice nigris; alis sublimpidis, costa, striga obliqua subcostali guttaque marginali nigricantibus.

Female. Ferruginous. Head testaceous, whitish behind; vertex luteous, blackish in front and behind; fore part with four blackish stripes; antennæ blackish; thorax with seven whitish stripes, the middle one broad, the inner pair very slender, the second pair broad, the third pair lateral; abdomen bluish green, slightly varied with

LINN. PROC.—ZOOLOGY. 8

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purple, base and fore part of the disk tawny; legs blackish; femora testaceous, with black tips; wings nearly limpid, with a slight lurid tinge in the discal areolet, blackish along the costa, and with a blackish oblique streak which extends from the costa along the præbrachial transverse vein; a blackish dot on the hind end of the discal transverse vein; veins black, discal transverse vein parted by about one-fourth of its length from the border, and by a little more than its length from the præbrachial transverse which is very oblique; alulæ white; halteres testaceous, with black knobs. Length of the body 5 lines; of the wings 9 lines.

124. LAMPROGASTER SCUTELLARIS, n. s. Mas. Subcinereo-nigra; oculis albido submarginatis; thorace vittis tribus cinereis, vittis duabus lateralibus, scutelli subquadrati margine, tibiis intermediis tarsisque albidis; alis nigricantibus, fasciis duabus integris duabusque macularibus incompletis albidis.

Male. Black, with a slight cinereous tinge; eyes partly bordered with whitish; third joint of the antennæ elongate-conical; arista plumose, the bristles few; thorax with three indistinct cinereous stripes, and with two whitish lateral stripes; scutellum nearly quadrate, with a whitish border; middle tibiæ, knees and tarsi whitish, the latter with black tips; wings blackish, whitish at the base, and with four whitish bands, first and third bands entire, second and fourth macular, very irregular and incomplete; veins black; discal transverse vein straight, parted by about one-fourth of its length from the border, and by hardly more than its length from the præbrachial transverse. Length of the body 2 lines; of the wings 4 lines.

This species has some resemblance to the genus Platystoma, and differs rather from the characters of Lamprogaster; it and the two following species, which are still more aberrant, will probably be considered as three new genera.

125. LAMPROGASTER CELYPHOÏDES, n. S. Mas et Fœm. Atra, nitens, brevis, lata; capite, antennis pedibusque testaceis; abdomine nigrocyaneo; alis limpidis, strigis transversis subcostalibus fuscescentibus.

Male and Female. Deep black, shining, short, broad. Head testaceous, face transverse; antennæ testaceous, third joint elongate-conical; arista bare; abdomen blackish blue, second segment very large, third and following not visible; legs testaceous; wings limpid, with four transverse pale brown subcostal streaks; discal transverse vein parted by less than half its length from the border, and by less than its length from the flexure of the præbrachial; halteres testaceous. Length of the body 2–2½ lines; of the wings 4½ lines.

126. LAMPROGASTER TETYROÏDES, n. s. Mas. Atra, nitens, brevissima, latissima; capite transverso, subruguloso; thorace scitissime punctato; abdomine cyaneo; tarsis flavis; alis nigris albido punctatis apud marginem posticum obscure cinereis.

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Male. Deep black, shining, very short and broad. Head transverse, slightly rugulose; third joint of the antennæ conical; arista thinly plumose; thorax very finely punctured; scutellum almost semicircular; abdomen blue, smooth; tarsi yellow; wings black, dark grey towards the hind border, with whitish points towards the costa; discal transverse vein parted by about its length from the border and by more than its length from the præbrachial transverse. Length of the body 2½ lines; of the wings 5 lines.

Gen. PLATYSTOMA, Latr.

127. PLATYSTOMA FUSIFACIES, n. s. Mas et Fœm. Cinerea; capite postice et apud oculos albo; vertice pallide luteo (mas) aut rufo (fœm.); facie plana, fusiformi, subargentea; antennis piceis; thoracis vittis tribus pectoreque canis; abdomine conico punctis albis; alis limpidis, guttis transversis interioribus fasciisque exterioribus nigricantibus.

Male and Female. Cinereous. Head white hind ward and about the eyes, black and shining towards the mouth; vertex pale luteous in the male, red in the female; face flat, fusiform, somewhat silvery; antennæ piceous, third joint long, slender, linear, arista plumose; thorax with three hoary stripes, the middle one much broader than the lateral pair; pectus hoary; abdomen conical, with numerous white points; wings limpid, with blackish dots towards the base, and with four exterior blackish bands, two of which are dilated towards the costa, and there contain some limpid dots; veins black, discal transverse vein straight, parted by about one-fourth of its length from the border, and by more than its length from the præbrachial transverse; halteres whitish. Length of the body 3½–5 lines; of the wings 8–10 lines.

128. PLATYSTOMA MULTIVITTA, n. s. Mas. Cinerea; capite postice et apud oculos albo, vertice luteo, facie et antennis fulvis; thoracis vittis octo pectoreque canis; abdominis segmentis cano fasciatis; ventre ferrugineo; pedibus nigris; alis limpidis, fasciis quatuor strigisque interioribus nigricantibus.

Male. Cinereous. Head white behind and about the eyes, vertex luteous; face and antennæ tawny, third joint of the latter long, slender, linear; arista very slightly plumose; thorax with eight hoary stripes; pectus hoary; abdomen with a hoary band on the fore border of each segment; legs black; wings limpid, with four blackish bands, and with some blackish marks nearer the base; two blackish streaks between the first and second bands; veins black; discal transverse vein straight, parted by one-fourth of its length from the border, and by very much more than its length from the præbrachial transverse; halteres black. Length of the body 4 lines; of the wings 8 lines.

8*

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Gen. DACUS, Fabr.

129. DACUS EXPANDENS, n. s. Fœm. Fulvus, latiusculus; antennarum articulo tertio piceo angusto lineari longissimo; abdomine vitta tenui nigricante; alis limpidis, costa vittaque postica fuscescentibus.

Female. Tawny, rather broad, very slightly covered with hoary tomentum, which forms stripes on the thorax and indistinct bands on the abdomen; third joint of the antennæ piceous, slender, linear, very long; arista bare; abdomen with a slender blackish stripe; wings limpid, brownish along the costa, and with a short oblique brownish stripe extending from the base to the interior border; veins black, discal transverse vein oblique, parted by full one-fourth of its length from the border, and by more than its length from the præbrachial transverse; halteres testaceous. Length of the body 4 lines; of the wings 8 lines.

130. DACUS PECTORALIS, n. s. Fœm. Cinereo-niger; capite fulvo, facie guttis duabus nigris; antennarum articulo tertio piceo angusto lineari longissimo; callis duabus humeralibus, fasciis duabus obliquis pectoralibus lateralibus, scutello tarsisque testaceis; thoracis vittis tribus abdominisque una canis; pedibus fulvis piceo cinctis; alis limpidis, costa vittaque postica fuscescentibus.

Female. Black, slightly covered with cinereous tomentum. Head tawny, with two small black dots on the face; third joint of the antennæ piceous, slender, linear, very long, arista bare; thorax with three indistinct hoary stripes; humeral calli, an oblique band on each side of the pectus, scutellum and tarsi, testaceous; abdomen with one hoary stripe; legs tawny, with diffuse piceous bands; wings limpid, brownish along the costa, and with a short oblique brownish stripe, extending from the base to the interior border; veins black; discal transverse vein parted by less than one-fourth of its length from the border, and by a little more than its length from the præbrachial transverse; halteres testaceous. Length of the body 3¾ lines; of the wings 7½lines.

131. DACUS LATIFASCIA, n. S. Fœm. Niger; capite postice et apud oculos albido; antennarum articulo tertio vix longo; thoracis fascia, metathorace pectorisque fasciis duabus obliquis canis; abdomine cyaneo; femoribus albidis apice nigris; alis albo-limpidis, costa atra, fasciis duabus latissimis nigris; halteribus testaceis.

Female. Black. Head whitish behind and about the eyes; third joint of the antennæ linear, round at the tip, hardly long, arista plumose; thorax with a band on the hind border of the scutum; metathorax and an oblique band on each side of the pectus hoary; abdomen blue; coxæ and femora whitish, the latter with black tips; wings limpid white, deep black along the costa, and with two very broad black bands; veins black; discal transverse vein very oblique, parted

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by about one-sixth of its length from the border, and by little more than half its length from the præbrachial transverse; halteres testaceous. Length of the body 4 lines; of the wings 8 lines.

132. DACUS MUTILLOÏDES, n. s. Fœm. Rufescens; capite nigro, postice et apud oculos albo; antennarum articulo tertio angusto lineari longissimo; thoracis vittis tribus, pectoris fasciis duabus obliquis lateralibus abdominisque fasciis duabus (secunda interrupta) albis, abdominis dimidio postico nigro-æneo; pedibus piceis; alis sublimpidis, costæ apice venisque transversis nigro nebulosis; halteribus albidis.

Female. Reddish. Head black, white behind and about the eyes and on the grooves of the face; antennæ black, reddish at the base, third joint slender, linear, very long, arista bare, rather stout; thorax with three whitish stripes; pectus with a more distinct oblique white band on each side; metathorax whitish; abdomen æneous, pubescent, finely punctured, reddish and slightly contracted towards the base, with two white bands, the second widely interrupted; oviduct long, lanceolate; legs piceous; wings nearly limpid, clouded with black at the tip of the costa and on the præbrachial transverse vein, hardly clouded on the discal transverse vein; veins black; discal transverse vein straight, parted by about one-fourth of its length from the border, and by much more than its length from the præbrachial transverse; halteres whitish. Length of the body 5 lines; of the wings 8 lines.

133. DACUS LONGIVITTA, n. s. Mas. Æneo-viridis, subpubescens, subtilissime punctatus; capite nigro apud oculos albido, epistomate ferrugineo, antennarum articulo tertio longo lineari; thorace sub-vittato; pedibus nigris, femoribus ferrugineis; alis subcinereis, costa vittaque apud venam præbrachialem nigris; halteribus piceis.

Male. Æneous green, with slight hoary tomentum, very finely punctured. Head black, whitish about the eyes; epistoma ferruginous, prominent; antennæ black, ferruginous at the base, third joint long, linear, conical at the tip; arista bare; thorax with an indistinct broad hoary stripe; abdomen compressed, nearly linear; legs black; femora ferruginous; wings slightly greyish, black along the costa and with a black stripe which extends along the præbrachial vein to the discal transverse vein; veins black; discal transverse vein straight, oblique, parted by a little more than half its length from the border, and by very much more than its length from the præbrachial transverse; halteres piceous. Length of the body 4–6 lines; of the wings 5–7 lines.

134. DACUS LATIVENTRIS, n. s. Fœm. Nigro-viridis, subtilissime punctatus; capite piceo apud oculos albido; antennis fulvis, articulo tertio sublanceolato; abdomine brevi, lato; pedibus nigris, femoribus anticis fulvis; alis subcinereis, costa vittaque apud venam præbra-

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chialem nigris, vena discali transversa nigricante nebulosa; halteribus albidis.

Female. Blackish green, very minutely punctured. Head piceous, whitish about the eyes; epistoma ferruginous, slightly prominent; antennæ tawny, third joint rather long, somewhat lanceolate, arista bare; abdomen nearly round, broader than the thorax; legs black, fore femora tawny; wings very slightly greyish, black along the costa to the tip of the præbrachial vein, with a black stripe along the præbrachial vein to the discal transverse vein, and with a blackish tinge about the discal transverse vein and along the adjoining part of the hind border; veins black, discal transverse straight, vein parted by less than half its length from the border, and by very much more than its length from the præbrachial transverse; halteres whitish. Length of the body 2 lines; of the wings 4 lines.

135. DACUS OBTRUDENS, n. s. Mas. Nigro-viridis, subtilissime punctatus; capite nigro apud oculos albido; antennis piceis basi rufes-centibus, articulo tertio lineari longissimo; abdomine lineari maculis duabus lateralibus testaceis; pedibus nigris, femoribus apice tarsisque posticis basi fulvis; alis subcinereis, costa, apice maculaque apud venam transversam discalem nigricantibus; halteribus albis.

Male. Dark green, very minutely punctured. Head black, whitish about the eyes, ferruginous towards the epistoma; antennæ piceous, reddish towards the base; third joint linear, very long, arista bare; abdomen linear, compressed, with a testaceous spot on each side before the middle; legs black, femora tawny towards the tips, hind tarsi tawny at the base; wings slightly greyish, blackish along the costa and at the tips, and about the transverse veins; veins black, tawny at the base; discal transverse vein straight, oblique, parted by about half its length from the border, and by a little more than its length from the præbrachial transverse; halteres white. Length of the body 4 lines; of the wings 7 lines.

136. DACUS POMPILOIDES, n. s. Mas. Niger; capite albido, epistomate ferrugineo; antennis piceis basi rufis, articulo tertio longo lineari; abdomine nigro-cyaneo; pedibus piceis; alis subcinereis, striga costali basali, fascia tenui postice abbreviate et triente apicali strigam sub-cineream includente nigricantibus; halteribus albis.

Male. Black. Head with whitish tomentum, epistoma ferruginous, prominent; antennæ piceous, red at the base, third joint long, linear, arista bare; abdomen linear, blackish blue, longer than the thorax; legs piceous; wings slightly greyish, with a blackish costal streak extending from the base, with a slender blackish band which is abbreviated hindward, and with more than one-third of the apical part blackish and including a slightly greyish streak; veins black, discal transverse vein straight, oblique, parted by a little less than its length from the border and by about its length from the præbrachial trans-

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verse; halteres white. Length of the body 3½ lines; of the wings 6 lines.

Gen. BREA, n. g.

Platystomæ affinis. Facies lata. Antennæ breves; articulus tertius longiconicus; arista nuda. Femora intermedia incrassata, denticulata.

Allied to Platystoma. Face broad; antennæ short, third joint elongate-conical; arista bare; middle femora incrassated, denticulated beneath.

137. BREA DISCALIS, n. s. Mas. Nigra; capite testaceo apud oculos albido, fronte ochracea; antennis piceis basi rufescentibus; thorace vitta lata cana; abdomine fulvo, discò nigro cupreo; pedibus fulvis, femoribus anticis apice tibiisque anticis basi nigris; alis sublimpidis, fascia media lata postice abbreviata guttam limpidam subcostalem includente lineaque transversa exteriore nigricantibus; halteribus testaceis.

Male. Black. Head testaceous, whitish about the eyes, front ochraceous; antennæ piceous, reddish at the base; thorax with a broad hoary stripe; abdomen tawny, with a blackish cupreous disk; legs tawny, fore femora at the tips and fore tibiæ at the base black; wings nearly limpid, with a broad middle blackish band, which is abbreviated hindward and includes a limpid dot by the costa, and has beyond it a blackish transverse line; veins black, testaceous towards the base; discal transverse vein straight, upright, parted by half its length from the border, and by much more than its length from the præbrachial transverse; halteres testaceous. Length of the body 4 lines; of the wings 7 lines.

138. BREA CONTRARIA, n. s. Mas et Fœm. Nigra; capite fulvo apud oculos albido, fronte ochracea; antennis rufescentibus; thorace vitta cana; abdomine purpureo apice cyaneo; pedibus nigris, femoribus anticis tarsisque testaceis; alis sublimpidis, fascia lata media postice abbreviata, guttis interioribus lineaque transversa exteriore nigricantibus.

Male and Female. Black. Head tawny, whitish about the eyes; antennæ reddish; thorax with a hoary stripe; sides and pectus also hoary; abdomen purple, blue towards the tip; legs black; tarsi and fore femora testaceous; wings nearly limpid, with a broad blackish middle band which is abbreviated hindward, with some interior blackish dots, and with an exterior transverse blackish line; veins black; discal transverse vein straight, parted by less than half its length from the border, and by less than its length from the præbrachial transverse; halteres black. Length of the body 3–3½ lines; of the wings 6–7 lines.

Gen. ADRAMA, n. g.

Mas. Corpus longiusculum. Caput thorace vix latius, setis duabus posticis erectis. Antennæ sat longæ; articulus tertius linearis, apice

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conieus; arista pubescens. Abdomen sublineare, thorace longius et angustius. Pedes mediocres; femora posteriora spinis minutis armata. Alœ sat longæ.

Male. Body rather long. Head transverse, hardly broader than the thorax, with two erect set on the hind part of the vertex; face vertical; epistoma slightly prominent. Antennæ nearly reaching the epistoma; third joint long, linear, conical at the tip; arista pubescent Abdomen almost linear, longer and narrower than the thorax Legs moderately long and slender; posterior femora with minute spines beneath. Wings rather long; discal transverse vein straight, upright, parted by hardly half its length from the border, and by rather more than its length from the præbrachial transverse.

139. ADRAMA SELECTA, n. s. Mas. Testacea; capite guttis tribus nigris; thorace disco antico vittisque duabus posterioribus nigris; tibiis tarsisque anticis piceis, tibiis posticis subpiceis; alis subfuscescentibus, fascia lata limpida nigricante marginata postice abbreviata.

Male. Testaceous. Head with a black dot above the antennæ and one on each side of the epistoma; thorax with the fore part of the disk black, and with two hindward black stripes; fore tibiæ and fore tarsi piceous; hind tibiæ somewhat piceous; wings slightly brownish, with two blackish bands, the first on the præbrachial transverse vein, abbreviated hindward, the second on the discal transverse vein, abbreviated in front, intermediate space limpid, veins testaceous, black towards the tips; halteres pale testaceous. Length of the body 4½ lines; of the wings 8 lines.

Gen. ORTALIS, Fallen.

140. ORTALIS PROMPTA, n. s. Fœm. Nigro-viridis; capite piceo apud oculos albido; antennis rufescentibus; thorace vitta abdomineque fasciis cinereis; pedibus nigris; alis limpidis, vittis tribus nigris, prima postice abbreviata, secunda tertiaque latis; halteribus albidis.

Female. Blackish green. Head piceous, whitish about the eyes; epistoma somewhat prominent; antennæ reddish, third joint somewhat lanceolate, piceous towards the tip; arista bare; thorax with a cinereous stripe; sides and pectus also cinereous; abdomen with two cinereous bands; legs black; wings limpid white, slightly cinereous towards the base, with three black bands, the first abbreviated hindward, the second and third very broad; veins black, discal transverse vein curved inward, parted by much less than its length from the border and by a little less than its length from the præbrachial transverse; halteres whitish. Length of the body 3½ lines; of the wings 6 lines.

141. OBTALIS COMPLENS, n. s. Mas et Fœm. Nigro-viridis; capite antennisque testaceis, articulo tertio brevi, arista plumosa; abdomine atro; pedibus testaceis, femoribus nigris; alis albo limpidis, strigis

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duabus apiceque nigro-cinereis, fasciis tribus satis nigricantibus; halteribus albis. Mas. Vertice luteo postice nigro, femoribus apice testaceis, alarum fasciis subconnexis. Fœm. Vertice nigro, tibiis nigris, posticis basi testaceis.

Male and Female. Blackish green. Head testaceous; antennæ tesblack; third joint short, conical; arista plumose; abdomen deep black; legs testaceous; femora black; wings limpid white, with three broad blackish stripes, the second emitting a branch from its outer side to the costa, a streak connected with the outer side of the third band, and the tips blackish cinereous; discal transverse vein straight, parted by much less than its length from the border, and by a little more than its length from the præbrachial transverse; halters white. Male. Vertex luteous, black hindward; femora with testaceous tips; bands of the wings partly connected. Female. Vertex black; tibiæ black, the hind pair testaceous towards the base. Length of the body 1½-2 lines; of the wings 3-4 lines.

Gen. TRYPETA, Meigen.

142. TRYPETA MULTISTRIGA, n. s. Fœm. Testacea; thorace pectoreque nigro-strigatis; abdomine maculis quatuor lateralibus anterioribus fascia lata apiceque nigris; femoribus posterioribus nigro vittatis; alis nigricantibus basi marginali maculis guttisque albis.

Female. Testaceous. Third joint of the antennæ short, conical; arista plumose; thorax with black bristles on each side, with eight black hindward, the middle pair short, the outer pair connected in front of the scutellum, two lateral black streaks; pectus with a black interrupted streak on each side; disk also black; abdomen with two transverse black spots on each side towards the base, and with a broad black band; oviduct black, flat, lanceolate, obtuse at the tip; posterior femora striped with black; wings blackish, limpid for a space from the base along the costa and along the hind border, and with twelve white marks of various size, four discal, eight marginal; discal transverse vein nearly straight, parted by one-fourth of its length from the border, and by about its length from the præbrachial transverse. Length of the body 3½ lines; of the wings 6 lines.

143. TRYPETA DORSIGUTTA, n. s. Mas. Atra; capite piceo vita testacea, subtus albo; antennis testaceis; thorace cinereo punctis lateralibus albis, pectore albido; abdominis segmentis testaceo marginatis; tibiis albido fasciitis, tarsis albidis; alis albo-limpidis, strigis basalibus fasciisque duabus latis nigricantibus, prima antice furcata; halteribus albis.

Male. Deep black. Head piceous, with cinereous tomentum, white behind and beneath, a testaceous stripe on the vertex; antennæ testaceous, black at the base, third joint conical, white at the base,

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arista plumose; thorax with cinereous tomentum, white points along each side; pectus whitish; hind borders of the abdominal segments testaceous with cinereous tomentum; tibiæ with a dingy whitish band; tarsi dingy whitish; wings limpid white, with several blackish marks towards the base and with two broad blackish bands, the first forked in front; discal transverse vein nearly straight, parted by less than its length from the border, and by more than twice its length from the præbrachial transverse; halteres white. Length of the body 2½ lines; of the wings 4 lines.

144. TRYPETA BASALIS, n. s. Mas. Nigra, nitens; capite antennisque fulvis, vertice maculis duabus piceis; abdomine basi pedibusque testaceis; alis limpidis, striga basali, fasciis tribus costaque apicali nigricantibus; halteribus testaceis.

Male. Black, slender, shining. Head tawny, with two elongated piceous spots on the vertex; antennæ tawny, third joint linear, rather long, arista bare; abdomen nearly fusiform, testaceous at the base; legs testaceous; wings limpid, with a blackish oblique streak extending from the base, with three blackish bands, and with a blackish costal streak extending round the tip, first and third bands slender, second broad, abbreviated like the first hindward; discal transverse vein straight, parted by about one-fourth of its length from the border, and by less than its length from the præbrachial transverse; halteres testaceous. Length of the body 1½ line; of the wings 3 lines.

145. TRYPETA IMPLETA, n. s. Fœm. Cinerea; capite albido; antennarum articulo tertio albido apice nigro; thorace vitta fusca, scutello albido, abdomine nigro; pedibus albidis nigro fasciatis; alis albis, maculis plurimis nigricantibus ex parte confluentibus; halteribus albidis.

Female. Cinereous. Head whitish; third joint of the antennæ short, conical, whitish, blackish at the tip, arista plumose; thorax with a brown stripe; scutellum whitish; abdomen black; legs whitish, with black bands; wings white, with many blackish spots, some of them confluent; discal transverse vein straight, parted by much less than its length from the border, and by a little less than its length from the præbrachial transverse; halteres whitish. Length of the body 1½line; of the wings 3 lines.

146. TRYPETA SUBOCELLIFERA, n. S. Mas. Cana; antennis albidis; thorace guttis fuscis, scutelli margine albido; abdomine fusco apicem versus cano maculis fuscis; pedibus albidis fusco fasciatis; alis limpidis, maculis nigricantibus pallido signatis ex parte confluentibus.

Male. Hoary. Antennæ whitish, third joint short, conical, arista plumose; thorax with some slight brown dots; scutellum brown, hind borders of the scutellum white; abdomen brown, hind borders of the segments and apical part cinereous, the latter with brown dots; legs whitish, with brown bands; wings limpid, with several blackish

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dots containing pale marks, some of them confluent and forming a middle band; discal transverse vein straight, enclosed in a pale streak, parted by much less than its length from the border and by much more than its length from the præbrachial transverse; halteres whitish. Length of the body 1½ line; of the wings 3 lines.

Subfam. ACHILDES, Walk.

Gen. ACHIAS, Fabr.

147. ACHIAS LONGIVIDENS, n. s. Mas et Fœm. Viridi-cinerea; capite testaceo fasciis duabus vittisque tribus anticis nigris; antennis nigris; thorace vittis quatuor purpureo-nigris, pectore ferrugineo; abdomine viridi-fulvo; pedibus piceis; alis limpidis, costa lurido-nigricante, vena transversa discali fusco nebulosa; halteribus testaceis apice nigris. Mas. Oculis longissime petiolatis, scutello viridi, femoribus basi fulvis. Fœm. Oculis subpetiolatis, scutello nigro-purpureo.

Male and Female. Greenish cinereous. Head with two black bands on the vertex and with four black stripes in front; antennæ black, third joint linear, very long, arista plumose; thorax with four purplish black stripes, middle pair abbreviated hindward and having behind them a spot of the same hue, lateral pair interrupted; pectus ferruginous; abdomen tawny, with bright green reflections, testaceous beneath; legs piceous; wings limpid, blackish, and with a lurid tinge along the costa, whence a short oblique blackish streak proceeds by the præbrachial transverse vein; discal transverse vein clouded with brown, hardly curved, parted by less than one-third of its length from the border, and by much more than its length from the præbrachial transverse, which is very oblique; halteres testaceous, with black tips. Male. Head with the fore black band interrupted; eyes with very long petioles, the latter about three-fourths of the length of the body; scutellum green; femora tawny towards the base. Female. Eyes with short petioles, extending a little beyond the sides of the thorax; scutellum blackish purple. Length of the body 5–6 lines; of the wings 12–13 lines.

148. ACHIAS LATIVIDENS, n. s. Fœm. Viridi-cinerea; capite testaceo, vittis tribus anticis nigris, oculis subpetiolatis; antennis nigris; thorace vittis quatuor purpureo-nigris, scutello cyaneo basi viridi, pectore fulvo; abdomine viridi-fulvo; pedibus nigris, femoribus basi luteis, tibiis luteo fasciatis; alis subcinereis, vitta costali nigricante interrupta lurida strigata, vena transversa discali fusco nebulosa; halteribus testaceis apice nigris.

Female. Greenish cinereous. Head testaceous, with three black stripes on the face; eyes very slightly petiolated; antennæ black; thorax with four purplish black stripes; scutellum blue, green at the base; pectus tawny; abdomen tawny, with bright green reflections; legs black; femora luteous towards the base; tibiæ with indistinct luteous

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bands; wings slightly greenish, with a blackish interrupted costal stripe containing luteous streaks; discal transverse vein clouded with brown; veins in structure like those of the preceding species; halteres testaceous, with black tips. Length of the body 6 lines; of the wings 13 lines.

This species at first sight seems like a variety of the preceding one, but the petioles of the eyes are shorter and thicker, the costal stripes of the wings are interrupted, and the shade on the discal transverse vein is more diffuse.

149. ACHIAS AMPLIVIDENS, n. s. Fœm. Fulva, subtus testacea; oculis extantibus non petiolatis; thorace submetallico, vittis quinque cinereis; abdomine purpureo basi testaceo, tibiis tarsisque nigris; alis subcinereis, costa nigro-fusca, venis transversis nigro-fusco nebulosis.

Female. Tawny, testaceous beneath. Head testaceous; eyes very prominent, but hardly petiolated; antennæ tawny; thorax slightly metallic, with five cinereous stripes, which are abbreviated bindward, the inner pair slender; abdomen purple, testaceous at the base; legs black; coxæ and femora testaceous, the latter with black tips; wings slightly greyish, costal stripe brown, blackish towards the tip; præbrachial transverse vein clouded with blackish, discal transverse vein clouded with a much paler hue than that of the præbrachial transverse vein, in structure like those of the two preceding species; halteres testaceous, with black tips. Length of the body 4½ lines; of the wings 9 lines.

Subfam. —?

Gen. POLYARA, n. g.

Mas. Corpus longiusculum. Caput transversum; facies lata, plana, non obliqua. Palpi lati. Antennæ parvæ; articulus tertius longiconicus; arista plumosa. Thorax oblongo-subquadratus. Abdomen sublineare, thorace multo longius et angustius. Pedes breves, tenues. Alœ latiusculæ; venæ optime determinatæ; venæ duæ transversæ inter venas radialem et cubitalem; vena præbrachialis apicem versus valde flexa.

Male. Body rather long. Head transverse, a little broader than the thorax; face broad, flat, vertical. Palpi broad. Antennæ small; third joint elongate-conical, not extending more than half the length to the epistoma; arista plumose. Thorax oblong-subquadrate. Abdomen nearly linear, much longer and more slender than the thorax. Legs short, rather slender; fore femora somewhat setose beneath. Wings rather broad, flat in repose; veins very strongly marked; a transverse vein between the cubital and mediastinal veins; two transverse veins between the radial and cubital veins; cubital vein slightly angular between the præbrachial transverse vein and the tip of the wing; præbrachial vein much curved towards its tip.

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The structure of the wing veins in this genus is very peculiar, and it does not agree well with any of the established subfamilies of Muscidæ.

150. POLYARA INSOLITA, n. s. Mas. Testacea; faciei sulcis albidis; abdomine lutescente fulvo; alis subcinereis, nigricante-fusco submarginatis et subfasciatis.

Male. Testaceous, paler beneath. Facial grooves for the antennæ whitish; thorax with some almost obsolete stripes, the middle pair approximate, slender, somewhat more distinct than the others; abdomen somewhat lutescent-tawny; wings slightly greyish, irregularly blackish-brown along the costa, brown at the tips, and with a brown band which is indistinct in front but much darker on the discal transverse vein; præbrachial vein largely bordered with brown; veins black, testaceous towards the base, discal transverse vein straight, parted by about one-sixth of its length from the border, and by rather less than half its length from the præbrachial transverse; alulæ very small. Length of the body 5½ lines; of the wings 10 lines.

Subfam. SEPSIDES, Walk.

Gen. ANGITULA, n. g.

Fœm. Corpus convexum, glaberrimum, nitidissimum. Caput subrotundum; epistoma valde prominens. Antennæ epistoma non attingentes; articulus tertius longiusculus, linearis, apice conicus; arista subpubescens. Thorax anticus valde productus et attenuatus; scutellum bispinosum; metathorax magnus, declivis. Abdomen longi-subfusiforme; segmentum primum gibbosum. Pedes longi, graciles; coxæ anticæ longissimæ. Alæ longæ, angustæ; alulæ obsoletæ.

Female. Body convex, very smooth and shining. Head nearly round; front subquadrate; face short; epistoma very prominent. Mouth short. Antennæ not reaching the epistoma; third joint linear, rather long, conical at the tip; arista somewhat pubescent. Thorax much produced and attenuated in front; scutellum armed with two spines; metathorax slanting, well developed. Abdomen elongate-subfusiform, longer and much more slender than the thorax; first segment gibbous above. Legs long, slender, without bristles; fore coxæ very long. Wings long, narrow; discal transverse vein straight, upright, parted by less than half its length from the border, and by nearly twice its length from the præbrachial transverse.

151. ANGITULA LONGICOLLIS, n.s. Fœm. Nigro-ænea; capite subtus albido, frontis disco rufescente, fascia albida; antennis piceis basi rufis; pedibus nigris, femoribus basi coxisque anticis albidis; alis limpidis, costa nigra.

Female. Æneous black. Head whitish beneath, front with a reddish disk, face whitish. Antennæ piceous, first and second joints red;

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legs black, bare; femora towards the base and fore coxæ whitish; wings limpid, with a black costal line extending to the tip of the præbrachial vein; veins and halteres black. Length of the body 5 lines; of the wings 8 lines.

Gen. SEPSIS, Fallen.

152. SEPSIS BASIFERA, n. s. Mas et Fœm. Nigra; thorace nigro-æneo; tarsis, femoribus basi pedibusque anticis testaceis; alis limpidis, costa basi nigra. Mas. Metatarsis intermediis dilatatis, alis apice vix nigricantibus. Fœm. Alis apice nigris.

Male and Female. Black, shining. Thorax æneous black; pectus cinereous; tarsi, femora at the base, and fore legs, pale testaceous; wings limpid; costa at the base and veins black. Male. Basal joint of the intermediate tarsi dilated; wings hardly blackish at the tips. Female. Wings black at the tips. Length of the body 2–2½ lines; of the wings 3–3½ lines.

Gen. CALOBATA, Fabr.

153. Calobata albitarsis, Wied. Auss. Zweifl. 71. 544. 22.

Inhabits also Java and Australia.

154. Calobata indica, Desv. Ess. Myod. 737. 4. (Nerius).

Inhabits also Hindostan.

155. Calobata Abana, Walk. Cat. Dipt. pt. 4. 1054.

156. CALOBATA SEPSOIDES, n. s. Fœm. Nigra; antennis ferrugineis, articulo tertio conico brevi, arista nuda; pedibus testaceis nigricante subnotatis, femoribus anticis nigris basi testaceis, tibiis anticis nigris, tarsis anticis niveis, posticis albidis; alis subcinereis, fasciis duabus indistinctis fuscescentibus.

Female. Black, shining. Antennæ ferruginous, third joint short, conical, arista bare; pectus slightly covered with cinereous tomentum; legs testaceous, with a few very indistinct blackish marks; fore femora black, testaceous towards the base; fore tibiæ black; fore tarsi snow-white, black at the base; hind tarsi whitish; wings greyish, with two almost obsolete brownish bands; discal transverse vein parted by less than its length from the border and by about four times its length from the præbrachial transverse. Length of the body 5 lines; of the wings 7 lines.

Gen. CARDIACEPHALA, Macq.

157. CARDIACEPHALA DEBILIS, n.s. Fœm. Testacea, gracilis; thorace linea transversa interrupta nigra; pedibus anticis parvis, posterioribus longis, tarsis albis brevissimis, tibiis anterioribus piceis; alis limpidis apice cinereis, fascia lata pallide lutea.

Female. Testaceous, slender. Vertex somewhat luteous; third joint of

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the antennæ conical, very short, arista bare; thorax attenuated in front, with a transverse interrupted black line hindward; abdomen longer than the thorax, lanceolate hindward; fore legs short, posterior legs long; tarsi white, very short; anterior tibiæ piceous; middle femora rather thicker than the hind pair; wings limpid, grey towards the tips, with a pale luteous middle band; veins testaceous, cubital and præbrachial converging towards the tips of the wings, discal transverse vein straight, parted by less than its length from the border and by about thrice its length from the præbrachial transverse. Length of the body 3½ lines; of the wings 5 lines.

Subfam. PSILIDES, Walk.

Gen. LISSA, Meigen.

158. LISSA CYLINDRICA, n. s. Mas. Cyanea, gracilis, cylindrica; antennis piceis basi albidis, arista plumosa; abdomine piceo basi apiceque cyaneis; pedibus albidis, femoribus posterioribus nigris apice albidis, femoribus posticis subtus spinosis, tibiis posticis nigris; alis subcinereis apice subfuscis; halteribus albidis apice nigris.

Male. Blue, slender, cylindrical. Head broader than the thorax; antennæ whitish, third joint piceous, arista plumose; abdomen piceous, slightly increasing in breadth to the tip, blue at the base and at the tip, hind borders of the first and second segments whitish; legs whitish, posterior femora black, whitish at the base and towards the tips, hind femora spinose beneath, hind tibiæ black; wings slightly greyish, brownish towards the tips; veins black, præbrachial and perbrachial very near together for more than half their length, discal transverse vein straight, parted by more than its length, and by about four times its length from the præbrachial transverse; halteres whitish, with black tips. Length of the body 3½ lines; of the wings 5 lines.

Gen. NERIUS, Fabr.

159. Nerius duplicatus, Wied. Auss. Zweifl. 11. 553. 8.

Inhabits also Java.

Subfam. OSCINIDES, Haliday.

Gen. OSCINIS, Fabr.

160. OSCINIS LINEIPLENA, n. s. Mas. Fusca; capite subtus testaceo apud oculos albo, vitta frontali alba; thorace pectoreque lineis sex albidis; abdomine sordide testaceo, pedibus albidis, tibiis tarsisque apice femoribusque anticis nigris; alis subcinereis, halteribus albidis.

Male. Brown. Head testaceous in front and beneath, white about the eyes, with a white stripe on the front; thorax and pectus with six whitish stripes on each, thorax with an indistinct middle testaceous

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stripe; abdomen dull testaceous; legs whitish; tibiæ and tarsi at the tips and fore femora black; wings greyish; veins black, discal transverse vein oblique, parted by more than its length from the border, and by full twice its length from the præbrachial transverse; halteres whitish. Length of the body 2 lines; of the wings 3 lines.

161. OSCINIS NOCTILUX, n. s. Mas. Atra; capite pallide flavo subtus albo; antennis luteis, arista nuda; scutello, maculis duabus pectoralibus abdominisque apice albis; tibiis tarsisque intermediis testaceis; alis nigricantibus postice cinereis, halteribus niveis.

Male. Black. Head pale yellow, black hindward, white beneath; antennæ pale luteous, third joint very short, arista bare; scutellum white; pectus with a white spot on each side; abdomen white at the tip; middle legs with testaceous tibiæ and tarsi; hind wings blackish, cinereous hindward; halteres snow-white. Length of the body ¾ line; of the wings 1½ line.

Subfam. GEOMYZIDES, Fallen.

Gen. DROSOPHILA, Fallen.

162. DROSOPHILA? FINIGUTTA, n. s. Mas. Fulva; capite antice testaceo, antennis testaceis, articulo tertio conico; abdomine maculis quatuor apicalibus nigris, tarsis nigris; alis cinereis venis nigris.

Male. Tawny. Head testaceous in front; antennæ testaceous, third joint conical; abdomen with two black spots on each side at the tip; legs testaceous; tarsi black; wings grey; veins black, discal transverse vein straight, parted by full half its length from the border and by full twice its length from the præbrachial transverse; halteres testaceous. Length of the body 1½ line; of the wings 3 lines.

163. DROSOPHILA? MELANOSPILA. Fœm. Testacea; antennarum articulo tertio conico, arista plumosa; thoracis disco abdominisque guttis duabus apicalibus atris; tarsis piceis; alis subcinereis.

Female. Testaceous. Vertex luteous; third joint of the antennæ conical; arista plumose; disk of the thorax and a dot on each side of the tip of the abdomen deep black; tarsi piceous; wings slightly greyish; veins black, discal transverse vein straight, parted by about half its length from the border and by twice its length from the præbrachial transverse. Length of the body 1 line; of the wings 2 lines.

164. DROSOPHILA? IMPARATA. Fœm. Pallide testacea; pedibus pallidioribus; alis subcinereis, venis pallidis.

Female. Pale testaceous, with a few bristles. Legs paler than the body; wings slightly greyish; veins pale, discal transverse vein straight, parted by about twice its length from the border and by more than twice its length from the præbrachial transverse. Length of the body ¾ line; of the wings 1½ line.

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Subfam. HYDROMYZIDES, Haliday.

Gen. EPHYDRA, Fallen.

165. EPHYDRA? TACITURNA, n. s. Fœm. Atra, nitens, antennis nigris, arista plumosa, abdomine nigro-cupreo, pedibus nigro-piceis, alis nigricantibus, venis nigris.

Female. Deep black, shining. Antennæ black, third joint linear, rather long, arista plumose; legs blackish-piceous; wings blackish; veins black, discal transverse vein straight, parted by a little more than its length from the border. Length of the body 1½ line; of the wings 2½ lines.

Fam. PHORIDÆ, Haliday.

Gen. PALLURA, n. g.

Mas. Corpus latiusculum, pubescens. Os retractum. Oculi pubescentes. Antennæ brevissimæ; arista longissima. Scutellum magnum, conicum. Abdomen subellipticum, thorace non longius. Pedes latiusculi, pubescentes, non setosi. Alœ amplæ, venis æqualibus.

Male. Body rather broad, pubescent. Proboscis small, withdrawn; eyes pubescent; antennæ very short, arista very long; scutellum large, conical, very prominent, extending beyond the base of the abdomen; abdomen nearly elliptical, not longer than the thorax; legs rather broad, pubescent, without bristles; wings rather long and broad; veins of equal size, costal vein ending at rather before half the length of the wing, radial ending at somewhat in front of the tip of the wing, cubital ending at hardly in front of the tip, præbrachial ending at a little behind the tip, pobrachial ending on the hind border at half the length of the wing, discal transverse vein straight, parted by more than twice its length from the border and from the præbrachial transverse.

166. PALLURA INVARIA. Mas. Lutea, immaculata, alis cinereis basi luteis, apice nigricantibus, venis nigris robustis.

Male. Luteous, of one colour. Wings grey, luteous at the base, blackish towards the tips; veins black, robust. Length of the body 3 lines; of the wings 6 lines.

Fam. HIPPOBOSCIDÆ, Leach.

Gen. ORNITHOMYIA, Leach.

167. Ornithomyia parva?, Macq. Hist. Nat. Dipt. 11. 2. 279. 3.

LINN. PROC.—ZOOLOGY. 9

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KEY ISLAND.

Fam. ASILIDÆ, Leach.

Subfam. LAPHRITES, Walk.

GEN. LAPHRIA, Fabr.

1. LAPHRIA PARADISIACA, n. s. Mas. Cuprea, aureo pilosa, capite pectoreque argenteis albo pilosis, mystace subaurato setis nonnullis nigris, abdomine apice purpureo subtus albido piloso, pedibus cyaneo-purpureis albido pilosis, femoribus cyaneo-viridibus, alis nigricantibus basi cinereis, halteribus albidis nigro notatis.

Male. Cupreous, with gilded hairs. Head and pectus silvery, with white hairs; mystax slightly gilded, with a few long black bristles; antennæ and mouth black; abdomen purple at the tip, underside clothed with long whitish hairs, silvery white at the base, the following segments bordered with silvery white; legs blue and purple, thickly clothed with long whitish hairs, femora bluish-green, fore tibiæ with pale gilded down beneath, hind tibiæ with a black bristly apical tuft beneath; wings blackish, grey towards the base; halteres whitish, marked with black. Length of the body 11 lines; of the wings 20 lines.

2. LAPHRIA PLACENS, n. s. Mas. Cyanea, capite aurato, mystace setis paucis longis nigris; antennis nigris, articulo tertio fusiformi; pectore albido, abdomine angusto, femoribus intus tibiisque purpureis; alis nigricantibus basi cinereis, halteribus piceis.

Male. Blue. Head gilded in front, whitish behind; mystax with a few long black bristles; proboscis and antennæ black, third joint of the latter fusiform; pectus whitish; abdomen cylindrical, much narrower than the thorax, and about twice its length; femora on the inner side and tibiæ purple, tarsi black; wings blackish, cinereous towards the base; halteres piceous. Length of the body 4½lines; of the wings 8 lines.

Subfam. ASILITES, Walk.

Gen. ASILUS, Linn.

3. ASILUS SUPERVENIENS, n. s. Mas. Cinereus, capite subaurato, mystace aurato setis paucis nigris, thorace vittis tribus latissimis nigris, abdomine fulvescenti-cinereo, pedibus rufescentibus, femoribus nigro vittatis, tarsis nigris, alis cinereis apice nigricantibus, halteribus testaceis.

Male. Cinereous. Head slightly gilded, pale cinereous, and clothed with pale hairs behind; mystax composed of gilded bristles, above which there are a few shorter black bristles; antennæ black, third joint elongate-fusiform, arista much longer than the third joint; thorax with three very broad hardly divided black stripes; abdomen

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with a slight fawn-coloured tinge, tip black, sexualia very small; legs reddish, femora striped above with black, tarsi black, reddish at the base; wings cinereous, blackish towards the tips; halteres testaceous. Length of the body 8 lines; of the wings 14 lines.

Gen. OMMATIUS, Illiger.

4. Ommatius noctifer, Walk. See page 88.

Fam. EMPIDÆ, Leach.

Gen. HYBOS, Fabr.

5. HYBOS DEFICIENS, n. s. Mas. Niger, thorace fulvo globoso macula dorsali nigra, abdomine basi fulvo, pedibus anterioribus testaceis, femoribus posticis subtus spinosis, alis cinereis apice obscurioribus, stigmate venisque nigris, halteribus testaceis, apice piceis.

Male. Black. Thorax and pectus tawny, the former globose, with a black dorsal spot; abdomen tawny at the base; anterior legs testaceous, hind femora spinose beneath; wings grey, darker at the tips; stigma and veins black; halteres testaceous, with piceous tips. Length of the body 2 lines; of the wings 4 lines.

Fam. SYRPHIDÆ, Leach.

Gen. ERISTALIS, Latr.

6. Eristalis resolutus, Walk. See p. 95.

Gen. BACCHA, Fabr.

7. BACCHA PURPURICOLA, n. s. Fœm. Purpureo-fulva; capite chalybeo; antennis rufis; pedibus fulvis; tibiis posticis apice tarsisque posticis basi piceis; alis nigricantibus, apud costam obscurioribus, spatio apicali subcostali cinereo; halteribus testaceis.

Female. Tawny, tinged with purple. Head chalybeous; antennæ red; legs tawny, hind tibiæ piceous towards the tips, hind tarsi piceous towards the base; wings blackish, darker along the costa, cinereous towards the tips with the exception of the costa; halteres testaceous. Length of the body 5½ lines; of the wings 9 lines.

Fam. MUSCIDÆ, Latr.

Subfam. SARCOPHAGIDES, Walk.

Gen. SARCOPHAGA, Meigen.

8. SARCOPHAGA BASALIS, n. s. Mas. Nigra, subaureo tomentosa; capite aurato; thorace vittis tribus nigris; abdomine albido tessel-lato; alis cinereis; venis lurido marginatis; alulis testaceis. 9*

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Male. Black, with slightly gilded tomentum. Head gilded; frontalia deep black, hardly widening in front; thorax with three black stripes, an indistinct blackish line on each side of the middle stripe; abdomen tessellated with white; wings grey; veins bordered with a lurid hue, especially towards the costa; præbrachial vein forming a slightly acute angle at its flexure, near which it is much curved inward, and is thence straight to its tip; discal transverse vein slightly curved inward near its hind end, parted by a little more than half its length from the border and from the præbrachial transverse; alulæ testaceous. Length of the body 5½ lines; of the wings 9 lines.

Subfam. MUSCIDES, Walk.

Gen. IDIA, Meigen.

9. Idia xanthogaster, Wied. Auss. Zweifl. 11. 349. 2.

Inhabits also Hindostan and Java.

10. Idia testacea, Macq. Hist. Nat. Dipt. 77. 246. 3.

Inhabits also Mauritius.

Gen. MUSCA, Linn.

11. Musca obtrusa, Walk. See p. 105.

Subfam. ANTHOMYIDES, Walk.

Gen. ARICIA, Macq.

12. ARICIA VICARIA, n. s. Fœm. Fulva, subtus testacea; capite nigro, apud oculos albo; antennis testaceis; alis cinereis, apud costam luridis.

Female. Tawny, testaceous beneath. Head black, white about the eyes; antennæ testaceous; abdomen clothed with short black bristles; legs testaceous, tarsi piceous; wings grey, with a lurid tinge towards the costa; veins black, discal transverse vein nearly straight, parted by about its length from the border, and by a little more than its length from the præbrachial transverse; alulæ slightly testaceous; halteres testaceous. Length of the body 3½lines; of the wings 6 lines.

13. ARICIA SQUALENS, n. s. Fœm. Nigra, cinereo tomentosa; facie argentea; antennis testaceis; thorace vittis nigris vittisque duabus lateralibus latis testaceis; abdomine obscure testaceo; pedibus piceis; femoribus nigris; tibiis anticis testaceis; alis cinereis; apud costam subluridis; venis halteribusque testaceis.

Female. Black, with cinereous tomentum. Face silvery white; antennæ pale testaceous, third joint long, linear, extending to the epistoma; thorax with black stripes, and on each side with a broad testaceous stripe; abdomen dull testaceous; legs piceous; femora black, fore tibiae testaceous; wings grey, with a lurid tinge towards

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the costa; veins testaceous, discal transverse vein very slightly curved inward, parted by much less than its length from the border, and by a little more than its length from the præbrachial transverse; alulæ whitish; halteres testaceous. Length of the body 3 lines; of the wings 6 lines.

Subfam. ORTALIDES, Haliday.

Gen. LAMPROGASTER, Macq.

14. LAMFROGASTER VENTRALIS, n. s. Fœm. Testaceo-cinerea; capite apud oculos albo, vertice luteo, facie pallide fulva; thorace lineis septem indistinctis nigricantibus; abdomine fusco maculis dorsalibus canis, subtus cavo lateribus ferrugiueis; pedibus nigris, tibiis ferrugineo fasciatis; alis limpidis basi subtestaceis, fasciis incompletis guttisque fuscis apud costam nigricantibus.

Female. Cinereous, with a testaceous tinge. Head white about the eyes, vertex luteous; face pale tawny, with white grooves for the antennæ; antennæ tawny, small; arista slightly plumose at the base; thorax with seven indistinct blackish lines; abdomen brown, with dorsal hoary nearly triangular spots, under side marsupial-like or with a pouch, ferruginous on each side; legs black, each tibia with a ferruginous band; wings limpid, slightly testaceous at the base, with brown dots and bands, the latter abbreviated hindward, blackish towards the costa; veins black, testaceous towards the base; discal transverse vein straight, parted by about one-third of its length from the border and by much more than its length from the præbrachial transverse; alulæ cinereous; halteres testaceous. Length of the body 5 lines; of the wings 10 lines.

Gen. TRYPETA, Meigen.

15. TRYPETA RORIPENNIS, n. s. Fœm. Fusca; capite nigro, facie alba; antennis nigris rufo-fasciatis; thorace vittis quatuor canis; abdominis segmentis testaceo marginatis; pedibus nigris, tarsis halteribusque testaceis; alis nigris, punctis plurimis albis.

Female. Brown. Head black; face white; antennæ black, third joint red, linear, rather long, black towards the tip; arista plumose; thorax with four hoary stripes; abdominal segments with testaceous hind borders; legs black, tarsi testaceous; wings black, with very numerous white points, a few of which are rather larger than the others; discal transverse vein straight, parted by less than its length from the border, and by more than twice its length from the præbrachial transverse; halteres testaceous. Length of the body 2 lines; of the wings 4 lines.


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Citation: John van Wyhe, ed. 2012-. Wallace Online. (http://wallace-online.org/)

File last updated 26 September, 2012