RECORD: Walker, Francis. 1860. Catalogue of the dipterous insects collected in Amboyna by Mr.A.R.Wallace, with descriptions of new species. Journal of the Proceedings of the Linnean Society (Zoology), 5 (17b): 144-168.

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


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Catalogue of the Dipterous Insects collected in Amboyna by Mr. A. R. WALLACE, with Descriptions of New Species. By FRANCIS WALKER, Esq., F.L.S.

[Read January 19th, 1860.]

Fam. BIBIONIDÆ, Haliday.

Gen. PLECIA, Hoffmansegg.

1. Plecia dorsalis, Walk. See vol. i. p. 5.

Fam. CULICIDÆ, Haliday.

Gen. CULEX, Linn.

2. CULEX IMPRIMENS, n. s. Fœm. Ferrugineus, proboscide palpisque nigricantibus, antennis basi ochraceis, abdomine linea testacea, suturis ventreque testaceis, pedibus testaceis, tarsis fuscis albido fasciatis, alis cinereis.

Female. Ferruginous. Palpi and proboscis blackish; the latter straight, a little longer than the thorax. Antennæ ochraceous at the base. Thorax with testaceous tomentum. Abdomen with a testaceous line and testaceous sutures above; under side testaceous. Legs testaceous, long; tarsi brown, the joints whitish at the base. Wings cinereous; veins brown, slightly fringed. Length of the body 3 lines; of the wings 5 lines.

3. CULEX VENTRALIS, n. s. Fœm. Fuscus, capite albo notato, abdomine fasciis latis ventralibus candidis, pedibus cupreo et purpurascente nitentibus, alis subcinereis.

Female. Brown. Head marked with white above. Proboscis straight, very little longer than the thorax. Abdomen with broad pure white ventral bands; legs with cupreous and purplish tomentum. Wings greyish; veins black, fringed. Length of the body 3 lines; of the wings 5 lines.

Fam. TIPULIDÆ, Haliday.

Gen. LIMNOBIA, Meigen.

Div. nov.

No discal areolet; subcostal, radial, cubital, and the three externo-medial veins not forked; subanal and anal veins distinct; the usual veinlet between the 2nd and 3rd externo-medial veins.

4. LIMNOBIA VITTIFRONS, n. s. Fœm. Ochracea, gracilis, capite nigro vittato, antennis nigris albido fasciatis basi testaceis, thorace guttis quatuor nigricantibus, abdomine fasciis septem fuscis, pedibus longissimis gracillimis, tarsis nigricantibus, alis limpidis, halteribus nigris.

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Female. Ochraceous, slender. Head with a black stripe on the vertex. Antennæ black, nearly as long as the thorax; joints whitish towards the tips; 1st and 2nd joints testaceous. Thorax with two blackish dots on each side; pectus pale testaceous. Abdomen with seven broad brown bands; the 1st and the 7th abbreviated on each side. Legs very long and slender; tarsi blackish. Wings limpid; veins black, testaceous towards the base; halteres black. Length of the body 8 lines; of the wings 14 lines.

Gen. TIPULA, Linn.

5. TIPULA FUMIFINIS. Mas. Ochracea, capite nigro vittato, antennis nigris basi ochraceis, thorace vittis tribus diffusis fuscis vittaque postica obscuriore magis concisa, abdomine apicem versus fusco maculis lateralibus pallidis, pedibus nigris, femoribus ochraceis apice nigris, alis limpidis, costa venisque apicalibus nigricante marginatis, halteribus testaceis apice nigris.

Tipula longicornis, Dol. Nat. Tijd. Ned. Ind. 1858.

Ochraceous. Head with a black stripe. Antennæ black, much shorter than the thorax; sutures of the joints whitish; 1st and 2nd joints ochraceous. Thorax with three diffuse brown stripes; hind part with a darker and more concise stripe. Abdomen brown towards the tip; a pale spot on each side of the fore border of the 4th and following segments. Legs black, long, stout; femora ochraceous with black tips. Wings limpid, blackish along the costa and about the terminal veins; discal areolet hexagonal; radial and cubital veins slightly curved, springing from a common petiole which proceeds from the angle of the discal areolet; halteres testaceous, with black knobs. Length of the body 10 lines; of the wings 16 lines.

Fam. STRATIOMIDÆ, Haliday.

Gen. PTILOCERA, Wied.

6. Ptilocera quadridentata, Wied. See vol. i. p. 7.

Gen. HERMETIA, Latr.

7. HERMETIA RUFIVENTRIS, n. s. Fœm. Nigra, capite supra lurido, antennis basi fulvis, thorace fasciis tribus tomentosis subauratis, scutello lurido, abdomine rufo aureo-tomentoso basi nigro, segmento 2° albido semihyalino, femoribus apice rufescentibus, tibiis tarsisque testaceis, illis nigricante strigatis, alis nigricantibus basi cinereis, halteribus testaceis apice pomaceis.

Female. Black. Head with cinereous pubescence, somewhat lurid above. Antennæ tawny towards the base; flagellum very elongate fusiform. Thorax with three slight gilded tomentose bands. the

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middle one more distinct than the others; scutellum lurid. Abdomen red, with gilded tomentum, black at the base; second segment dingy whitish, semihyaline. Femora reddish towards the tips; tibiæ and tarsi testaceous; the former with a blackish streak on each side. Wings blackish, cinereous at the base; veins black; halteres testaceous, with apple-green knobs. Length of the body 6 lines; of the wings 10 lines.

Gen. SARGUS, Fabr.

8. SARGUS QUADRIFASCIATUS, n.s. Mas. Fulvus, antennis testaceis, articulo 3° subrotundo, arista nigra, abdomine subclavato fasciis quatuor nigris, tibiis tarsisque nigricantibus, alis cinereis, stigmate halteribusque nigris.

Male. Tawny. Head cinereous beneath, mouth and antennæ testaceous; 3rd joint of the latter nearly round; arista black. Abdomen subclavate, about twice the length of the thorax, with four black bands. Tibiæ and tarsi blackish. Wings grey; veins, stigma, and halteres, black. Length of the body 4 lines; of the wings 8 lines.

9. Sargus mactans, Walk. See vol. iv. p. 97.

Fam. TABANIDÆ, Leach.

Gen. CHRYSOPS, Meigen.

10. Chrysops dispar, Fabr. See vol. i. p. 9.

Fam. ASILIDÆ, Leach.

Gen. LAPHRIA, Fabr.

11. LAPHRIA TRISTIS. Fœm. Cupreo-nigra, capite nigro, facie argentea, antennarum articulo 3° longi-fusiformi, pectore niveo, abdomine cupreo-purpureo, pedibus cyanescente nigris crassis, alis nigricantibus basi cinereis, halteribus piceis.

Laphria tristis, Dol. Nat. Tijd. Ned. Ind. 1857, p. 398.

Female. Cupreous black, with black down and bristles. Head black, with silvery-white pile on each side of the face, and with cinereous hairs beneath; mystax with several long black bristles. Third joint of the antennæ elongate-fusiform. Pectus shining white. Abdomen cupreous purple. Legs bluish-black, thick. Wings blackish, grey at the base, veins black; halteres piceous. Like L. scapularis in structure. Length of body 8 lines; of the wings 15 lines.

12. LAPHRIA COMPTA, n. s. Fœm. Læte cyanea, gracilis, capite aurato, facie ochraceo fasciata, antennarum articulo 3° fusiformi, tho-

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race antico pectoreque argenteo-albidis, abdomine cylindrico maculis lateralibus trigonis albidis, pedibus robustis viridi aut purpureo variis albo pilosis, tibiis anticis subtus fulvo tomentosis, alis cinereis basi limpidis, halteribus albidis.

Female. Structure like that of the preceding species. Bright metallic blue, slender. Head gilded, silvery-cinereous behind and beneath, with a broad ochraceous band on the face; mystax with a few long, slender black bristles. Proboscis and antennæ black; 3rd joint of the latter fusiform. Thorax in front and pectus silvery whitish. Abdomen cylindrical; segments with whitish triangular spots on the sides of the hind borders, which are whitish beneath. Legs stout, partly green or purple, with white hairs and black bristles; fore tibiæ with tawny tomentum beneath. Wings cinereous, limpid towards the base; veins black; halteres whitish. Length of the body 5½ lines; of the wings 10 lines.

13. Laphria socia, Walk. See vol. iii. p. 84.

Laphria Kollari, Dol. Nat. Tijd. Ned. Ind. 1857, p. 396.

14. Laphria Taphius, Walk. Cat. Dipt. Brit. Mus. 2.380.

Inhabits also the Philippine Islands.

15. Laphria comes, Walk. See vol. iii. p. 85.

16. LAPHRIA AMPLA, n. s. Fœm. Nigra, obscura, latiuscula, capite aurato, antennarum articulo 3° sublanceolato, maculis duabus humeralibus pectoreque aureo tomentosis, abdomine lineari segmentis 1°, 2°, 3° que ochraceo fasciatis, pedibus rufis crassis aurato pilosis, alis nigri-cantibus basi cinereis, halteribus albidis.

Female. Black, dull, rather broad. Head brightly gilded, with gilded hairs; mystax with a few black bristles. Third joint of the antennæ somewhat lanceolate, nearly twice the length of the 1st and 2nd together. Two humeral spots on the thorax and pectus, with gilded tomentum. Abdomen linear; 1st, 2nd, and 3rd segments with orange bands on the hind borders. Legs red, thick, with gilded hairs and bristles. Wings blackish, cinereous at the base; veins black; halteres whitish. Var. β. Abdomen wholly black. Length of the body 8 lines; of the wings 16 lines.

17. LAPHRIA PUER. Fœm. Testacea, cinereo pilosa, capite aurato, antennarum articulo 3° fusiformi apice nigro, pedibus sat robustis non incrassatis, alis subcinereis, venis nigris basi testacis.

Laphria puer, Dol. Nat. Tijd. Ned. Ind. 1858.

Female. Testaceous, with pale cinereous hairs. Head with pale gilded tomentum. Mystax with a few pale bristles; epistoma quite flat.

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Proboscis tawny. Third joint of the antennæ fussiform, its apical half black. Legs rather stout, not incrassated. Wings slightly greyish; veins black, of the usual structure, testaceous at the base. Length of body 3½ lines; of the wings 7 lines.

Gen. OMMATIUS, Ill.

18. Ommatius noctifer, Walk. See vol. ii. p. 88.

Ommatius minor, Dol. Nat. Tijd. Ned. Ind. 1857, p. 394.

Fam. LEPTIDÆ, Westw.

Gen. LEPTIS, Fabr.

19. Leptis ferruginosa, Wied. See vol. i. p. 118.

Fam. BOMBYLIDÆ, Walk.

Gen. ANTHRAX, Meig.

20. Anthrax Pelops, Walk. See vol. ii. p. 90.

21. ANTHRAX DEVECTA, n. s. Fœm. Cinerea, capite antico lurido, thorace pilis fulvis, scutello rufo, abdomine nigro, fasciis tomentosis interruptis pallide flavescentibus fasciisque duabus subapicalibus interruptis albis, pilis lateralibus nigris basi flavescentibus, disco antico fasciaque postica ventralibus albis, alis cinereis fulvo lineatis disco nigricantibus.

Group of A. Tantalus. Female. Cinereous. Head lurid in front and about the mouth. Antennæ black; 3rd joint lanceolate. Thorax with tawny hairs in front and on each side; pectus whitish, with yellowish hairs on each side; scutellum red. Abdomen black, with pale yellowish tomentose interrupted bands; the last two segments with interrupted white bands; sides with black hairs except at the base, where the hairs are pale yellowish; underside with a white disk towards the base, where the hairs are white on each side; a white band hindward. Legs black. Wings grey, blackish in the disk, tawny at the base, along the costa, and along some of the veins; halteres testaceous. Length of the body 7 lines; of the wings 16 lines.

22. ANTHRAX EMITTENS, n. s. Fœm. Nigra, antennarum articulo 3° brevissimo, pectore cinereo pilis albidis, abdomine fasciculis quatuor lateralibus, fasciis ventralibus albido pilosis, alis angustis, costa dimidioque basali nigris, halteribus apice niveis.

Group of A. degenera. Female. Black. Head cinereous behind, white about the eyes. Third joint of the antennæ very short. Pectus cinereous, with whitish hairs. Abdomen clothed with black hairs,

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with a tuft of white hairs on each side at the base, and with another on each side near the tip; under side with bands of whitish hairs on the hind borders of the segments. Wings narrow, black on nearly half the length from the base and along nearly the whole length of the costa; fore fork of the cubital vein forming an almost right angle, which emits a long stump; halteres with snow-white tips. Length of the body 3½ lines; of the wings 8 lines.

23. Anthrax prætendens, Walk. See vol. iv. p. 111.

24. Anthrax aterrima, Dol. Nat. Tijd. Ned. Ind. 1858.

A. proferens, Walk. See vol. iv. p. 113.

Fam. EMPIDÆ, Leach.

Gen. EPICEIA, n. g.

Mas, Hyboti affinis. Caput thorace non angustius. Oculi magni, connexi, supra plani. Antennœ brevissimæ; articulus 3us brevi-conicus; arista longissima, gracillima. Abdomen lineare, thorace multo longius et angustius. Pedes postici incrassati, femoribus subtus spinosis.

Allied to Hybos. Male. Head as broad as the thorax. Eyes large, connected, flat above. Antennæ very short; 3rd joint short, conical; arista very long and slender. Abdomen linear, much longer and narrower than the thorax. Hind legs incrassated, with the femora spinose beneath. Wings with the veins much like those of Hybos in structure, but with the præbrachial vein inclined exteriorly towards the cubital.

25. EPICEIA FERRUGINEA, n. s. Mas. Ferruginea, antennis nigris basi testaceis, abdomine nigro basi ferrugineo, pedibus anterioribus testaceis coxis nigris, pedibus posticis nigris, alis cinereis apud costam nigricantibus, halteribus testaceis.

Male. Ferruginous. Eyes large, connected, flat above. Antennæ black, testaceous at the base. Abdomen black, ferruginous at the base. Anterior legs testaceous, with black coxæ; hind legs black. Wings dark grey, blackish along the costa; veins black; halteres testaceous. Length of the body 3 lines; of the wings 6 lines.

Fam. DOLICHOPIDÆ, Leach.

Gen. PSILOPUS, Meig.

26. PSILOPUS PERSUADENS, n. s. Mas. Smaragdinus, capite supra purpurascente-cyaneo antice albo, antennis nigris basi testaceis, arista thoracis longitudine, thorace vittis tribus cupreis, abdomine cyanescente_ viridi, lateribus albis fasciis cupreo-nigris, pedibus albidis, fem? posticis apice tibiis posticis basi tarsisque nigris, alis cinereis subapicali nigricante postice abbreviata.

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Male. Bright emerald green. Head shining white in front; disk of the vertex purplish blue. Proboscis testaceous. Antennæ black, testaceous towards the base; 3rd joint lanceolate; arista about as long as the thorax. Thorax with three cupreous stripes; pectus shining white. Abdomen bluish green, white on each side, with broad black bands, which are partly cupreous on each side. Legs whitish; tarsi, hind femora towards the tips, and hind tibiæ towards the base, black. Wings grey, with an irregular subapical blackish band, which is abbreviated hindward; fore branch of the præbrachial vein curved inwards; discal transverse vein deeply undulating. Length of the body 5½ lines; of the wings 8 lines.

27. PSILOPUS PERFICIENS, n. s. Fœm. Cyaneus, latiusculus, capite purpureo, antennis pedibusque nigris, arista thoracis longitudine, thorace vittis tribus cupreo-viridibus, abdomine viridi, alis cinerascentibus.

Female. Blue, rather broad. Head purple, silvery in front. Antennæ black, with four setæ; 3rd joint lanceolate; arista as long as the thorax. Thorax with three bright cupreous-green stripes; the middle one with a purple tinge along each side. Pectus silvery. Abdomen green. Legs black. Wings greyish; fore branch of the præbrachial vein scarcely curved; discal transverse vein nearly straight; halteres black. Length of the body 3 lines; of the wings 6 lines.

28. PSILOPUS SUPERANS, n. s. Mas. Læte viridis, capite supra purpureo, antennis nigris brevissimis, arista thoracis fere longitudine, thorace vitta cuprea, abdomine cupreo basi cyaneo-viridi fasciis aurato-viridibus suturis nigris, pedibus obscure fulvis, alis cinerascentibus.

Male. Bright green. Head broader than the thorax, purple above. Antennæ black, very short; arista hardly shorter than the thorax. Thorax with a cupreous stripe; pectus with very slight whitish tomentum. Abdomen cupreous, much narrower than the thorax, bluish green at the base, with golden-green bands; sutures black. Legs dull tawny. Wings greyish; veins black; fore branch of the præbrachial vein forming a rounded but very abrupt angle, straight from thence to its tip; discal transverse vein straight. Length of the body 2 lines; of the wings 3¾ lines.

Fam. PIPUNCULIDÆ, Curt.

Gen. PIPUNCULUS, Latr.

29. PIPUNCULUS AMBOINALIS, n. s. Mas. Testaceus, antennis piceis, abdomine atro fasciis albido-cinereis, femoribus apices versus nigris, alis longis cinerascentibus, vena præbrachiali angulata furcata, halteribus albidis.

Male. Testaceous. Head with white tomentum. Antennæ piceous.

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Abdomen deep black, with a whitish grey band on the hind border of each segment; tip wholly whitish-grey. Legs pale testaceous; coxæ black; femora black on the apical half; tarsi with black tips. Wings long, greyish; veins black; præbrachial vein forming an angle which emits a fork; halteres whitish. Length of the body 3 lines; of the wings 8 lines.

Fam. SYRPHIDÆ, Leach.

Gen. CERATOPHYA, Wied.

30. CERATOPHYA INDICA. Fœm. Testacea, capite maculis tribus nigris, antennis fulvis articulo 3° longissimo, thoracis disco nigro, abdomine lituris tribus fasciis duabus latis apiceque nigris, alis subcinereis apice subnigricantibus, areola subapicali ex parte bisecta.

Ceratophya Indica, Dol Nat. Tijd. Ned. Ind. 1857, p. 404.

Female. Testaceous. Head with a black spot on each side of the vertex, and with a third black spot at the base of the antennæ. Antennæ tawny; 3rd joint linear, very long. Disk of the thorax black. Abdomen fully twice the length of the thorax; 2nd segment with a triangular black dorsal stripe, and with an elongated black spot in front on each side; 2nd and 3rd segments with broad black bands on their fore borders; tip wholly black. Wings slightly greyish, slightly blackish at the tips; veins black; subapical areolet partly bisected. Length of the body 5 lines; of the wings 8 lines.

Gen. ERISTALIS, Latr.

31. Eristalis Agno, Walk. Cat. Dipt. pt. 3. p. 625.

Inhabits also Australia.

32. Eristalis splendens, Leguillon. See vol. iii. p. 95.

Eristalis metallica, Dol. Nat. Tijd. Ned. Ind. 1857, p. 406.

33. ERISTALIS INSCRIPTA. Mas. Viridis, nitens, capite antico æneo vittis duabus albo tomentosis, antennis rufis, thorace maculis quatuor lateralibus vittisque tribus nigris, abdomine æneo-viridi fasciis duabus connexis maculisque sex posterioribus nigris, alis limpidis vitta subcostali nigricante, halteribus albidis.

Eristalis inscripta, Dol. Nat. Tijd. Ned. Ind. 1857, p. 40.

Male. Green, shining. Head in front æneous, with a broad stripe of white pile on each side. Eyes with the facets in front more minute than those above. Antennæ red; arista simple. Thorax with three slender middle stripes and with two large black spots on each side; forepart with cinereous bloom; scutellum bluish-green. Abdomen æneous-green; 2nd segment with two black bands which are connected by a broad black stripe; 2nd and 4th segments with three black spots on each. Legs black. Wings limpid, with a blackish subcostal stripe

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which extends to the brown stigma; veins black; halteres whitish. Length of the body 5 lines; of the wings 12 lines.

34. ERISTALIS OBLITERANS, n. s. Mas. Viridescente-nigra, nitens, capite guttis duabus albis, antennis piceis, thorace subæneo, scutello nigricante-cyaneo, abdomine cyanescente-viridi, segmentis 1° et 2° atris viridi marginatis, fascia interrupta maculaque posterioribus nigris, tibiis anterioribus albo fasciatis, alis limpidis basi nigricante-fuscis, halteribus albidis.

Male. Greenish-black, shining. Head with a white dot on each side in front. Eyes as in the preceding species. Antennæ piceous; arista simple. Thorax with an æneous tinge; scutellum blackish-blue. Abdomen bluish-green; 1st and 2nd segments deep black, green along their hind borders; 3rd with a black spot in front, and with an interrupted black band hindward. Legs black; anterior tibiæ with a white basal band. Wings limpid, irregularly blackish-brown towards the base; stigma brown; veins black; halteres whitish. Length of the body 4½ lines; of the wings 11 lines.

Fam. CONOPIDÆ, Leach.

Gen. CONOPS, Linn.

35. CONOPS RUFIFRONS. Mas. Rufus, subauratus, capite aurato micante, antennis apice pallidioribus articulo 3° lanceolato, thorace nigricante, humeris scutelloque rufis, abdomine clavato segmentis 1° et 2° nigricantibus, tarsis nigricantibus apice pallidis, alis cinereis apud costam luridis, halteribus testaceis.

Conops rufifrons, Dol. Nat. Tijd. Ned. Ind. 1857, p. 412.

Male. Red, with slight gilded tomentum. Head with bright gilded tomentum on each side in front. Antennæ brighter and paler towards the tips; 3rd joint lanceolate, shorter than the 2nd; 4th and 5th very minute, forming an angle with the 3rd; 6th elongateconical, terminated by an arista. Thorax blackish; humeri and scutellum red. Abdomen clavate; 1st and 2nd segments blackish. Tarsi blackish, with pale tips. Wings grey, lurid along the costa; veins black; halteres testaceous. Length of the body 6 lines; of the wings 9 lines.

Fam. MUSCIDÆ, Latr.

Subfam. TACHINIDES, Walk.

Gen. TACHINA, Fabr.

36. TACHINA ANALIS. Fœm. Pallide aurata, capite niveo, frontalibus angustis linearibus ferrugineis, antennis pallide flavis, articulo

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3° lineari, arista vix plumosa, thorace vittis quatuor nigris, scutello testaceo, abdomine testaceo longi-ovato apicem versus nigro, pedibus testaceis, tarsis nigricantibus, alis cinereis, costa basi lurida.

Tachina analis, Dol MSS.

Female. Pale-gilded, with black bristles. Head brilliant white, except on each side of the frontalia, which are narrow, linear, ferruginous, and have a few black bristles along each side; facialia without bristles; epistoma not prominent. Antennæ pale yellow, not near reaching the epistoma; 3rd joint linear, rounded at the tip, more than twice the length of the 2nd; arista moderately long, very minutely plumose. Thorax with four black stripes, the two middle very slender; scutellum testaceous. Abdomen testaceous, elongate-oval, longer than the thorax, black, and with black spines towards the tip. Legs testaceous; tarsi blackish. Wings grey, lurid along the costa towards the base; veins black, tawny towards the base, præbrachial vein forming a very obtuse angle at its flexure, from which it is nearly straight to its tip; discal transverse vein hardly undulating, parted by rather less than its length from the border, and by very little less than its length from the flexure of the præbrachial. Length of the body 4 lines; of the wings 8 lines.

37. TACHINA? DISCIFERA, n. s. Fœm. Fulva, robusta, abdomen ovatum guttis duabus fascia posteriore maculaque apicali nigris, alis cinereis, costa venisque late fuscescentibus, alulis cinereo-fulvis, halteribus pallidis.

Female. Tawny, stout, with long black bristles. Head wanting. Abdomen oval, with black spines towards the tip, a little longer than the thorax; 2nd segment with a transverse black dot on its hind border; 3rd with a black band on its hind border; a black apical spot. Wings grey, broadly brownish along the costa and about the veins; the latter black, tawny towards the base; præbrachial vein forming a rounded right angle at its flexure, beyond which it is much curved inward; discal transverse vein undulating, parted by much less than its length from the border, and by much more than its length from the flexure of the præbrachial; alulæ cinereous tawny; halteres paler than the body. Length of the body 3½ lines; of the wings 7 lines.

Gen. HAMAXIA, n. g.

38. HAMAXIA INCONGRUA, n. s. Fœm. Fulva, sat gracilis, capite albido, frontalibus fulvis linearibus, oculis nudis, palpis clavatis longiusculis, antennarum articulo 3° longo lineari, arista subpubescente, thorace vittis tribus indistinctis subobscurioribus, abdomine elliptico, alis cinereis apud costam fuscescentibus, alulis subtestaceis sat magnis.

Female. Tawny, rather slender, with black bristles. Head whitish in front and above, excepting the frontalia, which are tawny and linear; front prominent; facialia with black bristles on each side of the epi-

LINN PROC. — ZOOLOGY, SUPPLEMENT. 11

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stoma, which is prominent. Eyes bare. Palpi clavate, rather long. Antennæ almost reaching the epistoma; 3rd joint linear, rounded at the tip, about four times the length of the 2nd; arista very minutely pubescent, tawny and stout at the base. Thorax with three indistinct slightly darker stripes. Abdomen elliptical, not longer than the thorax. Legs stout. Wings grey, brownish along the costa; veins black, tawny at the base; præbrachial vein forming a very obtuse angle, ending with the costal vein at the tip of the wing; discal transverse vein almost straight and upright, parted by much more than its length from the præbrachial transverse vein, and by very much more than its length from the flexure of the præbrachial vein; alulæ with a testaceous tinge, rather small. Length of the body 3½ lines; of the wings 7 lines.

The characters in the above description of this species will sufficiently distinguish it as forming a new genus of Tachinides.

Gen. MASICERA, Macquart.

39. MASICERA MORIO. Mas. Nigra, elongata, cinerascente-tomentosa, capite albo lateribus auratis, frontalibus atria linearibus, oculis nudis, antennarum articulo 3° lineari apice rotundato, thorace vittis quatuor nigris, abdomine longi-conico fasciis tribus albido-cinereis, pedibus robustis, alis cinereis apud costam nigricantibus postice basi albis, alulis albis.

Masicera morio, Dol. Nat. Tijd. Ned. Ind. 1858.

Male. Black, elongate, with whitish cinereous tomentum and with long bristles and spines. Head with white shining tomentum, pale-gilded on each side above; frontalia deep black, linear, beset with bristles along each side; facialia with bristles along one-third of the length from the epistoma, which is not prominent. Eyes bare. Antennæ reaching the epistoma; 3rd joint linear, rounded at the tip, more than four times the length of the 2nd; arista long, slender, somewhat stouter towards the base. Thorax with four black stripes; the middle pair very slender. Abdomen elongate-conical; 2nd, 3rd, and 4th segments with a whitish cinereous band on the fore borders of the segments. Legs stout. Wings grey, blackish along the costa, white hindward at the base; veins black, pale yellow in the white part; præbrachial vein forming a nearly right angle at its flexure, near which it is curved inward and is thence straight to its tip; discal transverse vein curved inward, parted by less than its length from the border and from the flexure of the præbrachial. Alulæ white. Length of the body 6 lines; of the wings 12 lines.

40. MASICERA MANIFESTA, n. s. Fœm. Nigra, robusta, capite albo lateribus auratis, frontalibus atris antice perpaulo latioribus, oculis pubescentibus, antennarum articulo 3° lineari obtuso, thorace cinereo vittis quatuor nigris, scutello testaceo, abdomine longi-ovato fasciis tribus latis cinereis, pedibus robustis, alis cinereis, alulis albis.

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Female. Black, stout, thickly beset with long black bristles. Head white, shining, gilded on each side of the frontalia, which are deep black and very slightly widening in front; facialia without bristles, except by the epistoma, which is not prominent. Eyes pubescent. Antennæ nearly reaching the epistoma; 3rd joint linear, somewhat obtuse at the tip, four times the length of the 2nd; arista long, stout for nearly half the length from the base. Thorax with cinereous tomentum and with black stripes, the middle pair slender; scutellum testaceous. Abdomen elongate-oval, with black spines which are mostly towards its tips, and with three broad cinereous bands on the foreborders of the segments. Legs stout. Wings grey; præbrachial vein forming a right angle at its flexure, beyond which it is curved inward; discal transverse vein with its hind part much curved inward, parted by much less than its length from the border and by rather less than its length from the flexure of the præbrachial; alulæ white. Length of the body 5½ lines; of the wings 11 lines.

41. MASICERA PROMINENS, n.s. Fœm. Nigra, subcylindrica, sat angusta, capite albo, frontalibus nigris antice vix latescentibus, oculis nudis, antennarum articulo 3° lineari apice rotundato, thorace albido vittis quatuor angustis nigris, abdomine longi-ovato, pedibus robustis, alis cinereis apud costam fuscescentibus, alulis albis.

Female. Black, rather narrow, nearly cylindrical, with numerous long bristles. Head white, shining; frontalia black, hardly widening in front, with a few bristles along each side; facialia with bristles towards the epistoma, which is slightly prominent. Eyes bare. Antennæ nearly reaching the epistoma; 3rd joint linear, rounded at the tip, about four times the length of the 2nd; arista long, stout for one-third of the length. Thorax with whitish bloom, and with four slender black stripes. Abdomen elongate-oval, longer than the thorax, with black spines towards the tip. Legs stout. Wings grey, brownish along the costa; præbrachial vein forming a right angle at its flexure, beyond which it is slightly curved inward; discal transverse vein hardly undulating, parted by very little less than its length from the border, and from the flexure of the præbrachial; alulæ white. Length of the body 4 lines; of the wings 7½ lines.

Gen. PHOROCERA, Macq.

42. PHOROCERA EXPELLENS, n. s. Mas. Nigra, robusta, frontalibus atria linearibus, facie alba, oculis pubescentibus, palpis longis fulvis, autennarum articulo 3° lineari longissimo subobtuso, thorace vittis quatuor fasciaque postica nigris, abdomine ovato fasciis tribus albis, alis cinerascentibus breviusculis basi et apud venas nigricantibus, alulis albis, halteribus albidis.

Male. Black, stout. Head and thorax with pale gilded tomentum; frontalia deep black, linear, with bristles along each side; face white;

11*

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facialia without bristles except by the epistoma, which is prominent. Eyes pubescent. Palpi long, tawny, Antennæ reaching the epistoma; 3rd joint linear, somewhat obtuse at the tip, fully six times the length of the 2nd; arista long, slender, stouter towards the base. Thorax with four black stripes; the middle pair slender; a black band hind-ward. Abdomen oval, very little longer than the thorax, with black spines towards the tip; 2nd, 3rd, and 4th segments with white bands on their fore borders, that on the 2nd segment very slight. Legs stout. Wings greyish, rather short, blackish at the base and along most of the length of the costa and of the veins; præbrachial vein forming a hardly obtuse and slightly rounded angle at its flexure, from whence it is very slightly curved inward to its tip; discal transverse vein undulating, parted by much less than its length from the border, and from the flexure of the præbrachial. Alulæ white. Halteres whitish. Length of the body 4½ lines; of the wings 8 lines.

43. PHOROCERA DECEDENS, n. s. Mas. Nigra, capite albo supra aurato, frontalibus nigris antice sublatescentibus, oculis pubescentibus, palpis fulvis, antennarum articulo 3° lineari longissimo, thorace aurato vittis quatuor nigris, scutelli basi nigro, abdomine ovato fasciis tribus latis interruptis cinereis, pedibus robustis, alis cinereis, alulis albis.

Male. Black, with long, black bristles. Head white, gilded above, clothed with white hairs beneath; frontalia black, widening slightly in front, with a few black bristles on each side; facialia with bristles along nearly the whole length from the epistoma, which is not prominent. Eyes pubescent. Palpi tawny. Antennæ almost reaching the epistoma; 3rd joint linear, rounded at the tip, six times the length of the 2nd; arista long, stout for more than one third of its length. Thorax gilded, with four slender black stripes, the lateral pair interrupted; scutellum black at the base; pectus cinereous. Abdomen oval, with black spines towards its tip, hardly longer than the thorax; three broad cinereous interrupted bands on the fore borders of the segments. Legs stout. Wings grey; præbrachial vein forming a right angle at its flexure, beyond which it is curved inward; discal transverse vein slightly undulating, parted by a little less than its length from the border, and by a little more than its length from the flexure of the præbrachial; alulæ white. Length of the body 4½ lines; of the wings 8 lines.

44. PHOROCERA BASITINCTA. n. s. Mas. Nigra, lata, capite albo supra cinereo, frontalibus atris antice latescentibus, oculis pubescentibus, antennarum articulo 3° longissimo subobtuso, thorace albido vittis duabus gracillimis nigris, abdomine ovato subtessellato, pedibus robustis, alis cinereis basi et apud costam nigricantibus, alulis albis.

Female. Black, broad, thickly beset with long black bristles. Head white, cinereous above: frontalia deep black, widening in front, with black bristles along each side; facialia with bristles along nearly the

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whole length from the epistoma, which is slightly prominent. Eyes pubescent. Antennæ reaching the epistoma; 3rd joint linear, somewhat obtuse at the tip, about six times the length of the 2nd; arista long, stout for about one-third of its length. Thorax with whitish bloom, and with two very slender black stripes. Abdomen oval, not longer than the thorax, somewhat tessellated on account of its whitish glancing bands being interrupted on each side. Legs stout. Wings grey, blackish at the base and along part of the costa; præbrachial vein forming a rounded and slightly obtuse angle at its flexure, beyond which it is slightly curved inward; discal transverse vein nearly straight, parted by much less than its length from the border, and by less than its length from the flexure of the præbrachial; alulæ white. Length of the body 4 lines; of the wings 8 lines.

Gen. TRICHOPROSOPA? Macq.

45. TRICHOPROSOPA? MARGINALIS, n. S. Nigra, elongata, capite antico albo, antennarum articulo 3° fusiformi, thorace cinereo vittis duabus nigris humeris albidis, pedibus robustis, alis nigricantibus elongatis margine postico strigisque cinereis, alulis cinereis nigro marginatis.

Black, elongate, bristly. Head white in front; two long stout bristles on the vertex, and one on each side of the epistoma, which is prominent; frontalia with bristles; facialia without bristles. Antennæ almost reaching the epistoma; 3rd joint fusiform, rather obtuse at the tip, about four times the length of the 2nd; arista long, stout for about one-third of its length. Thorax slightly cinereous; humeri whitish; two dorsal black stripes. Legs stout. Wings blackish, elongate, cinereous along the hind border, and with cinereous streaks in some of the areolets; præbrachial vein emitting a stump and forming an obtuse angle at its flexure, beyond which it is undulating and joins the cubital vein at some distance from its tip; discal transverse vein undulating, parted by about half its length from the border, and from the flexure of the præbrachial; alulæ cinereous, black bordered; halteres black. Length of the body 6½ lines; of the wings 12 lines.

Subfam. DEXIDES, Walk.

Gen. DEXIA, Meigen.

46. DEXIA? ALULIFERA, n. s. Mas. Nigra, angusta, capite albo, frontalibus piceis perangustis, oculis nudis, palpis fulvis, antennis piceis basi fulvis, thorace subcinereo fascia media vittisque tribus anticis albis, abdomine cylindrico fasciis duabus latis apiceque chalybæis, pedibus longis, alis angustis fuscescentibus, alulis pallide flavis, halteribus albis.

Male. Black, narrow, with a few slender bristles. Head white, shining; frontalia piceous, very narrow; facialia without bristles, except by the epistoma, which is not prominent, and has a black point on each

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side. Eyes bare. Palpi tawny. Antennæ piceous, slender, almost reaching the epistoma; 1st and 2nd joints tawny; 3rd linear, rounded at the tip, about four times the length of the 2nd; arista slender, bare, stout at the base. Thorax slightly cinereous; forepart with three more distinct white stripes, which terminate in a middle white band; pectus white. Abdomen cylindrical, much narrower than the thorax, and about twice its length, chalybeous at the tip, and with two broad chalybeous bands on the fore borders of the segments. Legs long, slender, nearly bare. Wings narrow, brownish; veins tawny at the base; 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 half its length from the border, and by much more than its length from the flexure of the præbrachial; alulæ pale yellow, the lower pair extremely large; halteres white. Length of the body 3½ lines; of the wings 7 lines.

Subfam. SARCOPHAGIDES, Walk.

Gen. SARCOPHAGA, Meigen.

47. SARCOPHAGA SERICEONITENS. Fœm. Cinerea, capite aurato, frontalibus nigris antice sublatescentibus, thorace vittis tribus nigris parallelis bene determinatis, abdomine tessellato subtus basi nigro, alis cinereis apud costam subobscurioribus, alulis albis.

Sarcophaga sericeonitens, Dol. MSS.

Female. Cinereous. Head pale-gilded; frontalia black, slightly widening in front. Palpi black. Thorax with three regular parallel black stripes, the middle one extending over the scutellum. Abdomen distinctly tessellated, black beneath at the tip. Wings grey, a little darker along the costa; præbrachial vein forming a right angle at its flexure, near which it is curved inward, and is thence straight to its tip; discal transverse vein straight, 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 5½ lines; of the wings 8 lines.

48. SARCOPHAGA AURATA, n. s. Mas et Fœm. Cinerea, subaurata, capite aurato micante, frontalibus atris antice sublatescentibus, thorace vittis tribus nigris parallelis bene determinatis, abdomine apice aurato vittis tribus apiceque nigris, alis cinereis apud costam fuscescentibus, alulis albis.

Male and Female. Cinereous, very slightly gilded. Head brightly gilded; frontalia deep black, slightly widening in front. Palpi and antennæ black. Thorax with three regular parallel black stripes, the middle one extending over the scutellum. Abdomen brightly gilded towards the tip, narrower in the male than in the female, with three black stripes, the middle one extending to the tip, which is black, the lateral pair extending to the hind border of the 3rd segment. Wings

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grey, brownish along most of the costa; præbrachial vein as in the preceding species; discal transverse vein hardly curved in the male, slightly curved in the female, parted as in the last species, nearer the flexure of the præbrachial in the female than in the male; alulæ white. Length of the body 6—6½ lines; of the wings 10 lines.

Subfam. MUSCIDES, Walk.

Gen. MUSCA, Linn.

49. MUSCA COSTALIS (genus Silbomyia, Macq.), Fœm. Aureo-viridis, capite aurato micante, frontalibus et faciei lateribus atris, palpis antennis pedibusque nigris, thorace vittis quatuor auratis, femoribus cyanescente viridibus, alis cinereis basi et apud costam nigris, venis fusco marginatis, alulis anticis albis, posticis nigricantibus basi albis.

Cynomyia costalis, Dol. MSS.

Closely allied to M. opulenta, Walk. vol. ii. p. 104. Female. Golden green, beset with long stout black bristles. Head brightly gilded; hind part, frontalia, and face deep black, the latter with a bright gilded middle ridge; epistoma prominent. Palpi and antennæ black, 3rd joint of the latter rather long. Thorax purple in some aspects, with four slight golden stripes. Abdomen with black spines hindward. Legs black, stout; femora bluish green. Wings grey, black at the base and along the costa, brown along most of the length of the veins; præbrachial vein forming a right angle at its flexure, beyond which it is slightly undulating; discal transverse vein undulating, parted by a little less than half its length from the border, and by a little more than half its length from the flexure of the præbrachial; alulæ white, the lower pair blackish, except towards the base. Length of the body 6 lines; of the wings 10 lines.

50. Musca obtrusa, Walk. See vol. iii. p. 105.

51. MUSCA BIVITTATA (genus Calliphora, Desv.). Fœm. Nigra, thorace vittis quatuor albis parallelis, lateralibus postice abbreviatis, abdomine cyaneo-viridi segmentis purpureo marginatis, alis cinereis, costa exteriore venisque fusco marginatis, alulis albis.

Lucilia bivittata, Dol. Nat. Tijd. Ned. Ind. 1858.

Female. Black. Head wanting. Thorax with four parallel white stripes; the lateral pair abbreviated hindward; pectus white. Abdomen bright bluish green, with a slight white bloom, broader but hardly longer than the thorax; hind borders of the segments purple. Wings grey, brown exteriorly along the costa and along the veins; præbrachial vein forming a right and slightly rounded angle at its flexure, beyond which it is curved inward; discal transverse vein slightly undulating, parted by little more than half its length from the border and from the flexure of the præbrachial; alulæ white. Length of the body 5 lines; of the wings 10 lines.

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52. MUSCA FERRUGINEA (genus Ochromyia, Desv.). Fœm. Fulva, cinereo-subtomentosa, capite albo, palpis pallidis, abdomine apicem versus cyanescente purpureo, tibiis apice tarsisque nigris, alis cinereis, costa exteriore diffuse fusca.

Ochromyia ferruginea, Dol. Nat. Tijd. Ned. Ind. 1857. 414.

Female. Tawny, with slight cinereous bloom, paler beneath. Head white about the eyes and in front, cinereous on the vertex. Palpi pale. Antennæ wanting. Abdomen broader but not longer than the thorax, bluish purple towards the tip. Tibiæ towards the tips and tarsi black. Wings grey, diffusedly brown along the exterior part of the costa; præbrachial vein forming a scarcely obtuse angle at its flexure, beyond which it is slightly curved inward; discal transverse vein curved towards the præbrachial, parted by less than half its length from the border, and by much less than its length from the flexure of the præbrachial. Length of the body 4 lines; of the wings 8 lines.

53. MUSCA INCONCLUSA, n. s. Mas. Cinerea, capite albido lateribus ferrugineis, palpis antennis pedibusque nigris, thorace lineis tribus indistinctis nigricantibus, abdomine elliptico subtessellato linea dorsali tenui nigra, genubus rufescentibus, alis cinereis, alulis albis, halteribus testaceis.

Male. Cinereous. Head whitish in front, somewhat ferruginous on each side of the epistoma, which is prominent. Palpi and antennæ black; the latter not reaching the epistoma; arista plumose. Thorax with three indistinct blackish lines. Abdomen elliptical, not longer than the thorax, slightly tessellated, with a slight black dorsal line. Legs black; knees reddish. Wings grey; veins black, testaceous at the base; præbrachial vein forming a very obtuse angle at its flexure, beyond which it is hardly curved inward; discal transverse vein hardly undulating, parted by half its length from the border, and by less than its length from the flexure of the præbrachial; alulæ white; halteres testaceous. Length of the body 3 lines; of the wings 6 lines.

Subfam. ANTHOMYIDES, Walk.

Gen. ARICIA, Macq.

54. Aricia significans, Walk. See vol. iii. p. 107.

Gen. OPHYRA, Meig.

55. OPHYRA RIPARIA. Mas. Nigra, nitens, capite antico albido guttis duabus argenteis, antennarum articulo 3° lineari, abdomine nigricante-æneo, alis subcinereis.

Ophyra riparia, Dol. Nat. Tijd. Ned. Ind. 1858.

Male. Black, shining. Head whitish in front, with a silvery white dot above the antennæ. Third joint of the antennæ linear, more than twice the length of the 2nd. not near reaching the epistoma; arista

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bare, stout at the base. Scutellum conical. Abdomen blackish æneous, a little shorter than the thorax. Wings greyish; veins black, cubital and præbrachial veins diverging from the præbrachial transverse to the discal transverse vein, parallel from thence till very near the border, where they very slightly converge; discal transverse vein very slightly curved inward, parted by about half its length from the border, and by very little less than its length from the præbrachial transverse vein. Length of the body 3 lines; of the wings 5 lines.

56. OPHYRA REDUCTA, n. s. Fœm. Anthracina, puncto capitis albo, palpis antennisque nigris, alis sublimpidis, venis nigris basi testaceis, alulis cinereis testaceo marginatis.

Female. Coal-black, shining. Head with a white point above the antennæ. Palpi and antennæ black; the latter nearly reaching the epistoma; arista bare. Wings nearly limpid; veins black, mostly testaceous at the base; cubital and præbrachial veins as in the preceding species; discal transverse vein nearly straight and upright, parted by much less than its length from the border, and by much more than its length from the præbrachial transverse vein; alulæ cinereous, with testaceous borders. Length of the body 2½ lines; of the wings 5 lines.

Subfam. LAUXANIDES, Walk.

Gen. LAUXANIA, Latr.

57. LAUXANIA PERPLEXA, n. s. Fœm. Anthracina, nitens, arista subpubescente, abdomine ovato, alis sublimpidis, venis nigris basi testaceis.

Female. Coal-black, shining. Head as broad as the thorax. Antennæ black; 3rd joint linear, rounded at the tip, reaching the epistoma, four times the length of the 2nd; arista very minutely pubescent. Abdomen oval, very little longer than the thorax. Wings nearly limpid; veins black, testaceous towards the base; discal transverse vein straight, upright, parted by nearly its length from the border, and by nearly twice its length from the præbrachial transverse. Length of the body 2 lines; of the wings 4 lines.

Subfam. ORTALIDES, Haliday.

Gen. LAMPROGASTER, Macq.

58. Lamprogaster marginifera, Walk. See vol. iii. p. 111. Acinia faciestriata, Dol. Nat. Tijd. Ned. Ind. 1857. 416.

Gen. ZYGÆNULA, Dol.

Mas. Corpus latissimum, tumidum. Caput thorace latius, genis valde dilatatis. Antennæ minimæ; articulus 3us conicus; arista nuda.

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Thorax transversus. Abdomen contractum, declive, thorace brevius.

Pedes breves, inermes. Alæ mediocres; alulæ maximæ.

Zygænula, Dol Nat. Tijd. Ned. Ind. 1858.

Pterogenia, Bigot, MSS.

Male. Body very broad, somewhat tumid. Head extremely broad, broader than the thorax; genæ or sides of the face excessively dilated. Antennæ very small; 3rd joint conical, not extending beyond half the length of the face; arista simple. Thorax a little broader than long. Abdomen contracted, curved downward, shorter than the thorax. Legs short, unarmed. Wings moderately broad; discal transverse vein upright, slightly curved outward, parted by about one-fourth of its length from the border, and by much less than its length from the præbrachial transverse vein; alulæ very large.

59. ZYGÆNULA PARADOXA. Mas. Cyanescente nigra, capite antennis pedibusque testaceis, abdomine cyaneo, alis sublimpidis basi fuscescentibus, venis flavescente albis basi nigricantibus, halteribus albidis.

Zygænula paradoxa, Dol. Nat. Tijd. Ned. Ind. 1858.

Lamprogaster tetyroïdes, Walk. vol. iii. p. 112.

Male. Bluish black. Head, antennæ, and legs testaceous. Abdomen blue. Wings nearly limpid, brownish towards the base; veins yellowish white, blackish towards the base. Halteres whitish. Length of the body 2½ lines; of the wings 6 lines.

Gen. DACUS, Fabr.

60. Dacus longivitta, Walk. See vol. iii. p. 115.

61. DACUS INSCRIPTUS, n. s. Fæm. Niger, capite fulvo macula elongata nigricante, antennis fulvis, articulo 3° nigro basi fulvo, arista subpubescente, thorace subcinereo vitta dorsali strigisque duabus obliquis fulvis, abdomine fusiformi basi vittaque dorsali fulvis, pedibus fulvis, tibiis intermediis basi tibiisque posticis nigricantibus, alis cinereis angustis apice fuscis macula discali subapicali cinerea, gutta discali fusca, halteribus testaceis.

Female. Allied to D. bilineatus. Black. Head tawny, with an elongate blackish spot above. Antennæ tawny, almost reaching the epistoma; 3rd joint black, very elongate conical, tawny at the base; arista very minutely pubescent. Thorax slightly cinereous, with a dorsal tawny stripe, and with two oblique tawny streaks on each side. Abdomen fusiform, as long as the thorax, tawny at the base, and with a dorsal tawny stripe. Legs tawny, slender; middle tibiæ blackish towards the base; hind tibiæ blackish. Wings grey, narrow, lurid along most of the costa, brown towards the tips, near which there is a a discal grey spot; a brown dot on the præbrachial transverse vein; discal transverse vein almost straight, upright, parted by one-fourth of its length from the border, and by much more than its length from the præbrachial transverse; halteres testaceous. Length of the body 5 lines; of the wings 9 lines.

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62. DACUS SEPSOIDES, n. s. Mas. Æneus, gracilis, capite piceo nigro antice ferrugineo vitta albida, oculis albido marginatis, antennis pallide fulvis, arista nuda, thorace vitta cinerea, abdomine cyaneo subcompresso basi viridi segmentis purpureo marginatis, pedibus nigris, robustis, femoribus rufis, alis vix cinerascentibus macula apicali nigricante, halteribus testaceis.

Male. Æneous, slender. Head piceous black above, ferruginous in front, where there is a whitish stripe; epistoma prominent. Eyes bordered with whitish. Antennæ pale tawny, nearly reaching the epistoma; 3rd joint very elongate-conical; arista bare. Thorax with a cinereous stripe; pectus cinereous. Abdomen blue, somewhat compressed, mostly green towards the base, a little longer and narrower than the thorax; hind borders of the segments purplish. Legs black, stout; femora red; fore coxæ with whitish pile. Wings hardly greyish, with a blackish apical spot; præbrachial vein curved towards the cubital on approaching the tip of the wing; discal transverse vein upright, nearly straight, 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 6 lines.

63. DACUS SIGNATIPES, n. s. Mas. Cyanescente-niger, gracilis, linearis, capite argenteo, antennis fulvis, arista nuda, abdomine cupreo-nigro fusiformi, pedibus fulvis, tibiis posticis femoribusque apice nigris, tibiis posterioribus basi nigris, alis cinereis fascia lata postice abbreviata maculaque magna apicali fuscis.

Male. Bluish black, slender, linear. Head silvery white about the eyes. Antennæ tawny; arista bare. Abdomen cupreous black, fusiform, a little longer than the thorax. Legs tawny, slender; femora black towards the tips; posterior tibiæ black at the base; hind tibiæ with black tips. Wings grey, with a brown band which does not extend to the hind border, and with a large apical brown spot; veins black; discal transverse vein straight, upright, parted by less than its length from the border, and by about four times its length from the præbrachial transverse; postbrachial vein very near the præbrachial. Length of the body 3 lines; of the wings 5 lines.

Gen. ENICOPTERA. Macq.

64. ENICOPTERA RUFIVENTRIS, n. s. Fœm. Fulva, elongata, nitens, capite punctis tribus nigris, antennarum articulo 3° longi-conico, arista subpubescente, thorace nigro-æneo, vitta dorsali humeris scutellique lateribus fulvis, abdomine rufescente fulvo cylindrico, femoribus posterioribus nigro-spinosis, tibiis tarsisque anticis piceis, alis longiusculis subfuscescentibus apud discum sublimpidis, fasciis duabus fuscis incompletis diffusis fuscis, halteribus testaceis.

Female. Tawny, elongate, shining, almost without hairs and bristles. Head nearly as broad as the thorax, with a black point on the front above the antennæ, and with two black points on the epistoma, which

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is prominent. Antennæ not reaching the epistoma; 3rd joint very elongate-conical; arista very minutely pubescent. Thorax æneous black; dorsal stripe, humeri, sides of the prominent scutellum, a band on each side, and disk of the pectus tawny. Abdomen reddish tawny, cylindrical, almost linear, much longer and narrower than the thorax. Posterior femora with minute black spines beneath; fore tibiæ and fore tarsi piceous. Wings rather long, slightly brownish, almost limpid in most of the disk, with two incomplete and diffuse brown bands; veins black, tawny towards the base; discal transverse vein straight, upright, parted by about one-third of its length from the border, and by more than its length from the præbrachial transverse vein; halteres testacous. Length of the body 6 lines; of the wings 10 lines.

Gen. RIOXA, Walk.

65. RIOXA ? BIMACULATA, n. s. Fœm. Fulva, capite supra ochraceo, antennis brevissimis, articulo 3? conico, arista plumosa, peetore abdomineque piceis, hoc maculis duabus basalibus fulvis, femoribus posterioribus nigris, femoribus anticis subtus setosis, tibiis posterioribus piceis, alis nigricantibus longiusculis basi vitreis, guttis duabus discalibus, maculis duabus trigonis costalibus maculisque duabus marginalibus albis, halteribus albidis.

Female. Tawny, with black bristles. Head ochraceous above, whitish behind. Antennæ very short; 3rd joint conical, a little longer than the 2nd; arista plumose. Thorax with whitish pile on each side; peetus piceous. Abdomen piceous, elliptical, a little shorter than the thorax, with a tawny spot on each side at the base. Posterior femora black; fore femora thickly setose beneath; posterior tibiæ mostly piceous. Wings blackish, rather long, vitreous at the base, with two white dots in the disk, with two triangular white spots on the costa, and with two more on the hind border; discal transverse vein straight, upright, parted by about half its length from the border, and by more than its length from the præbrachial transverse; halteres whitish. Length of the body 4 lines; of the wings 8 lines.

Gen. TRYPETA, Meig.

66. TRYPETA TRANSIENS, n. s. Nigra, capite fulvo supra nigro, antennis rufescentibus, articulo 3° longi-conico, arista pubescente, thorace vitta lateribusque cinereis, scutello, femoribus posterioribus apice pedibusque anticis fulvis, alis subcinereis fasciis quatuor deviis fulvis nigricante marginatis, la(abbreviata) et 2a apud discum connexis, 2a, 3a, et 4a apud costam connexis, 4a obliqua postice fureata, furea exteriore apicali.

Black. Head tawny, black above, except in front and behind; face piceous. Palpi and antennæ reddish; 3rd joint of the latter elongateconical, reaching the epistoma; arista pubescent. Thorax with a cinereous stripe; sides and pectus cinereous; scutellum tawny; fore

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legs tawny; posterior femora tawny towards their tips. Wings slightly greyish, with four irregular blackish bordered tawny bands; 1st band abbreviated hindward, joined in the disk to the 2nd; 2nd, 3rd and 4th joined along the costa; 4th oblique, forked hindward, the outer fork occupying the tip of the wing; discal transverse vein straight, upright, parted by less than one-fourth of its length from the border, and by hardly more than its length from the præbrachial transverse. Length of the body 4 lines; of the wings 8 lines.

67. TRYPETA SIGNIFACIES, n. s. Mas. Viridis, metallica, nitens, latiuscula, capite antico ochraceo-albo facie brevi strigis duabus nigris, antennis pallide testaceis, arista plumosa, abdomine nigro, pedibus testaceis, femoribus nigricantibus, alis limpidis, fasciis quatuor nigricantibus, 1a et 2a connexis, 3a et 4a apud costam connexis, 4a valde obliqua subapicali; striga nigricante inter 3am et 4am,. halteribus albis.

Male. Metallic green, shining, rather broad. Head ochraceous, white in front and about the eyes; face short, with two diverging black streaks; epistoma prominent. Antennæ pale testaceous, not near reaching the epistoma; 3rd joint conical; arista plumose. Abdomen black, not longer than the thorax. Legs testaceous; femora blackish. Wings limpid, with four broad blackish bands; 1st and 2nd bands connected, except near the costa, 3rd and 4th connected on the costa; 4th very oblique, subapical, having a blackish streak between it and the 3rd; discal transverse vein straight, nearly upright, parted by much less than its length from the border, and by very much more than its length from the præbrachial transverse. Halteres white. Length of the body 2½ lines; of the wings 4 lines.

Subfam. SEPSIDES, Walk.

Gen. SEPSIS, Fabr.

68. Sepsis basifera, Walk. See vol. iii. p. 124.

Gen. CALOBATA, Fabr.

69. Calobata impingens, Walk. See vol. iv. p. 16. Micropeza albimana, Doll. MSS.

Subfam. PSILIDES, Walk.

Gen. MICROPEZA, Macq.

70. Micropeza fragilis, Walk. See vol. i. p. 37. Micropeza tenuis. Dol. Nat. Tijd. Ned. Ind. 1858.

Gen. NERIUS, Wied.

71. Nerius duplicatus, Wied. See vol. iii. p. 125. Nerius striatus, Dol. Nat. Tijd. Ned. Ind. 1856.

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72. NERIUS TIBIALIS, Dol. Nat. Tijd. Ned. Ind. 1857. p. 418. Nigricans, subtus fulvus, palpis testaceis, antennis fulvis basi nigricantibus, arista alba, thorace vitta lata ferruginea, callis humeralibus maculisque duabus posticis fulvis, pedibus anticis fulvis, femoribus tibiisque spinosis, tibiis basi nigris apice dilatatis, tarsis nigris brevissimis, alis nigricantibus.

Blackish, tawny beneath. Palpi testaceous. Antennæ tawny, blackish towards the base; arista white. Thorax with a broad ferruginous middle stripe, with tawny humeral calli, and with a tawny spot on each side hindward. Fore legs tawny, stout; femora and tibiæ spinose beneath; knees black; tibiæ black towards the base, dilated towards their tips, which are black; tarsi black, very short. Wings blackish. Length of the body 6 lines; of the wings 9 lines.

The following list of Amboynese Diptera, characterized, together with many Javanese species, by the late Dr. Doleschall (Nat. Tijd. Nederlandsch Indië, 1856—58), will serve as a supplement to my Catalogue. Should it appear that he and I have described the same species as new, his names have the priority, and must be retained.

Fam. MYCETEPHILIDÆ, Hal.

Gen. SCIARA, Meig.

1. femoralis.

Fam. CULICIDÆ, Hal.

Gen. MEGARHINA, Desv.
2. amboinensis ♂. subulifera ♀.
Gen. CULEX, Linn.
3. aureostriatus.
4. variegatus.

Fam. TIPULIDÆ, Hal.

Gen. LIMNOBIA, Meig.
5. aurantiaca.
Gen. TIPULA, Linn.
6. præpotens, Wied.
Gen. MEGISTOCERA, Wied.
7. atra.
Gen. CYLINDROTOMA, Meig.
8. ornatissima.

Fam. STRATIOMIDÆ, Latr.

Gen. CLITELLARIA, Meig.
9. nigerrima.
Gen. EUDMETA, Wied.
10. marginata, Wied.
Gen. WALLACEA, Dol.
11. argentea.
Gen. ODONTOMEJIA, Latr.
12. cinerea.
Gen. SARGUS, Fabr.
13. rufus.
14. ferrugineus.
15. formicæformis.

Fam. XYLOPHAGIDÆ, Burm.

Gen. SUBULA, Meig.
16. flavipes.
17. vittata.

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Fam. TABANIDÆ, Leach.

Gen. TABANUS, Linn.
18. furunculigenus.
19. cinnamomeus.
20. monoculus.
Gen. CHRYSOPS, Wied.
21. fasciatus, Wied.

Fam. ASILIDÆ, Leach.

Gen. DASYPOGON, Meig.
22. lanatus.
Gen. XIPHOCERA.
23. rufithorax.
Gen. LAPHRIA, Meig.
24. cyanea, Macq.
25. pellucida.
26. Kubingii.
27. villipes.
28. dissimilis.
29. Bleckeri.
Gen. ASILUS, Linn.
30. latro.
Gen. OMMATIUS, Wied.
31. fulvidus, Wied.
32. spathulatus.
33. minimus.
Gen. LEPTOGASTER, Meig.
34. unicolor.
35. annulipes.
36. moluccanus.
Gen. DAMALINA, Dol.
37. laticeps.
Gen. DAMALIS, Fabr.
38. erythrophthalmus.

Fam. LEPTIDÆ, Westw.

Gen. ATHERIX, Meig.
39. nigritarsis.

Fam. BOMBYLIDÆ, Leach.

Gen. ANTHRAX, Fabr.
40. ventrimacula.
41. flaviventris.
42. cæruleopennis.
43. argyropyga.semiscita, Walk.
44. angustata. degenera? Walk.

Fam. DOLICHOPIDÆ, Leach.

Gen. PSILOPUS, Meig.
45. longicornis.
46. palmetorum.

Fam. SYRPHIDÆ.

Gen. EUMERUS, Meig.
47. argyropus.
48. bimaculatus.
Gen. GRAPTOMYZA, Wied.
49. milleporiformis.
Gen. ERISTALIS, Latr.
50. maxima.
51. refulgens.
Gen. HELOPHILUS, Meig.
52. pilipes.
Gen. SYRITTA, St. Farg.
53. amboinensis.
Gen. DIDEA, Macq.
54. Ellenriederi.
55. Macquarti.
56. diaphana.
Gen. PIPIA, Fall.
57. mœrens.
Gen. SYRPHUS, Fabr.
58. villosulus.
Gen. BACOHA, Fabr.
59. vespæformis.
60. moluccana.
61. semilimpida.

Fam. CONOPIDÆ, Leach.

Gen. CONOPS, Fabr.
62. bipartita.

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Fam. MUSCIDÆ, Latr.

Gen. ECHINOMYIA, Dum.
63. monticola.
Gen. EURYGASTER, Macq.
64. setosa.
65. strigosa.
Gen. SENOMETOPIA, Macq.
66. sphingum.
Gen. MASICERA, Macq.
67. aurifrons.
Gen. ZAMBESA, Walk.
68. Walkeri.
Gen. CLYTIA, Desv.
69. modesta.
70. nigroanalis.
Gen. LYDELLA, Macq.
71. unguiculata.
Gen. GONIA, Meig.
72. exigua.
Gen. SPIROGLOSSA, Dol.
73. ipus.
Gen. PROSENA, St. Farg.
74. moluccana.
Gen. RUTILIA, Desv.
75. nigrocostalis.
Gen. OMALOGASTER, Macq.
76. rufescens.
Gen. SARCOPHAGA, Meig.
77. aurifrons aurata? Walk.
78. aliena, Walk.
79. frontalis.
Gen. LUCILIA, Desv.
80. nosocomiorum.
81. azurea.
Gen. POLLENIA, Desv.
82. flavicans.
Gen. ARICIA, Macq.
83. quadripunctata.
84. graminicola.
Gen. SPILOGASTER, Desv.
85. pusilla.
Gen. HYDROTÆA, Desv.
86. bicolor.
Gen. PACHYCEPHALA, Dol.
87. Mohnikei.
88. albifacies.
Gen. TETANOCERA, Dum.
89. tripunctata.
Gen. SAPROMYZA, Fall.
90. punctigera.
Gen. ORTALIS, Fall.
91. regularis.
92. flaviscutellata.
93. trifasciata.
Gen. BACTROCERA, Guér. STRUMETA, Walk.
94. conformis.
95. maculigera.
96. vespoides.
Gen. THEMARA, Walk.
97. ampla, Walk.
98. alboguttata.
99. nigropunctulata.
Gen. HERINA, Desv.
100. chalybea.
101. limpidipinnis.
102. grandis.
103. nigrocostata.
Gen. DIOPSIS, Linn.
104. graminicola.
Gen. NERIUS, Fabr.
105. annulipes.
Gen. DROSOPHILA, Fall.
106. ananassæ.


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

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