Genea tenuirostris ( James, 1947 )

Nunez, Enio & Couri, Márcia S., 2011, Revision Of Neotropical Genea Rondani (Diptera, Tachinidae, Tachininae, Leskiini), Papéis Avulsos de Zoologia 51 (31), pp. 481-497 : 493-494

Genea tenuirostris ( James, 1947)

( Figures 29-30 )

Dejeaniopalpus tenuirostris James, 1947: 105 (description of male); Guimarães, 1971: 116 (catalogue).

Genea tenuirostris ; Wood, 1987: 1264 (comb. nov.); O’Hara & Wood, 1998: 761 (comb. nov. formalized).

Diagnosis: Males and females with 2 pairs of proclinate orbital setae and 1 pair of reclinate orbital setae.

Male: Body length, 7.5-10.0 mm; wing, 6.5-9.0 mm. Head: White; parafrontal and vertex slightly golden; parafacial with 2/3 of the width of the flagellomere; vitta yellow; 5-8 pairs of frontal setae, 2-3 pairs below the level of the antennal insertion; frons with 0.45 of the head width at the level of the anterior ocellus; inner and outer verticals present; antenna yellow, flagellomere brown, yellow on base; arista slightly plumose; proboscis long, mentum with 1.5 times the head height ( Fig. 29 ); median vibrissa; 4-7 pairs of subvibrissal setulae, shorter near vibrissa; 1-3 pairs of setulae above vibrissa; palpus exceptionally long with almost twice the length of the flagellomere.

Thorax: brown in ground colour with white and golden pruinosity; dorsocentrals 3+3; post-pronotals 2; scutellum with one pair of basal setae; one pair of subapical setae and one pair of weak discal setae near the apex; pleura yellowish on anterior half otherwise brown with white pruinosity and long yellow setulae. Wing and calypter hyaline; vein R 1 entirely setulose on dorsal surface (few setulae apically on ventral surface) and vein R 4+5 setulose from base to a little beyond crossvein r-m on dorsal surface ( Fig. 30 ). Legs with coxa, trochanter, femur and tibia yellow, tarsus slightly brown; fore tibia with 1 strong posterior seta on middle third; 1 dorsal subapical seta; 1 posteroventral apical seta; claws and pulvilli short; mid femur with 1 anterior seta on middle third; 2-3 long and sparse posteroventral setae on basal half; 2 posterodorsal subapical setae; mid tibia with 1 long anterodorsal seta on middle third; 1 strong ventral seta on middle third; 2 posterior setae on middle third; 1 anterodorsal and 1 posterodorsal subapical seta each; 1 anteroventral, 1 ventral and 1 posteroventral long seta each; hind femur with 2 posterodorsal setae on apical third; 4-7 sparse posteroventral setae on basal half and 3-5 anteroventral setae on basal half and 1 seta on apical third; hind tibia with one posterodorsal row of setae; 3-4 ventral setae on middle third; 1 anterodorsal and 1 posterodorsal subapical seta each; 1 anteroventral apical seta.

Abdomen: Yellow; T 1+2 not excavate to its hind margin; rounded median apical brown spot dorsally on T 3 never surpassing the median line of this tergite and a triangular apical brown spot dorsally on T 4; small brown spots laterally on T 3 to T 5; 1 pair of median marginal setae on T 1+2 and T 3.

Male terminalia: not dissected.

Female: Differs from male as follows: median marginals on T 1+2 absent, otherwise similar to male.

Type material: Holotype. MEXICO. Tapachula , 1 male, 17-19.viii.1943, Snyder, F.M. col. ( AMNH).

Other material examined: BRAZIL. Amazonas : Manaus , Reserva Ducke, armadilha Malaise, 3 females, 01-10.iii.1995, Barbosa, M.G.B. col. ( INPA) .

Geographic distribution: Mexico, Brazil (new record).

Figures

FIGURES 29‑30: Genea tenuirostris (James), 29. Head, lateral view; 30. Wing, dorsal view. Figures 31-35: Genea trifaria (Wiedemann), 31. Head, lateral view; 32. Wing, dorsal view; 33. Epandrium, cerci and surstyli, posterior view; 34. Epandrium, cerci and surstyli, lateral view; 35. Aedegal complex, lateral view.