Hemerodromia breviradia, Câmara, J. T., Plant, A. R. & Rafael, J. A., 2014

Câmara, J. T., Plant, A. R. & Rafael, J. A., 2014, Neotropical Hemerodromia Meigen (Diptera: Empididae), a world of discovery I: new generic record and new species from Brazilian Amazon Basin, Zootaxa 3893 (2), pp. 209-231 : 212-214

Hemerodromia breviradia sp. nov.

( Figs 9–15 )

Diagnosis. Vei n R 2+3 short and straight, joining C ~ 0.2 distance between end of R1 and R4 ( Fig. 10 ); cell bm+dm long, ending after at level of R1, ~2.5X as long as cell br ( Fig. 10 ); cercus narrow with pointed apex ( Figs 11, 12 ); phallus sclerotized, extending just beyond the hypandrium apex ( Fig. 14 ).

Description. Male ( Fig. 9 ). Head. Dark brown to black, antenna and mouthparts yellow with all setae whitish; ocellar triangle with 1 pair of proclinate ocellar setae; anterior ocellus larger. Eyes iridescent black, very narrowly separated on face which bears fine reclinate setulae. Frons with 1–2 setulae; 3–4 pairs of vertical setae contiguous with uniseriate postocular setae; occiput bearing scattered fine hairs. Clypeus with rather dense short downwardly directed pile. Proboscis slightly curved with setae yellow. Antenna with scape and pedicel bearing distinct short dorsal setulae; postpedicel about 1.3X as long as wide, stylus ~ 0.8X as long as postpedicel. Thorax ( Fig. 9 ). Elongate, slightly arched ventrally; dorsum yellow; antepronotum with anterior margin almost straight; scutum with yellow setae, very small and fine except 1 notopleural and 1 pair of scutellars. Leg ( Fig. 9 ). Whitish yellow. C1 ~ 1.3X longer than distance between C1 and C2, 5X as long as wide with some pale dorsoapical setae. F1 ~ 1.1X as long as C1, 3.5–4.0X as long as wide. Femoral formula 7/15–16/13 –14/6–7, basal spines stronger; denticles confined to distal 0.7, becoming closer together distally, black, 2 rows linear, without distal discontinuity. T1 ~ 0.7X as long as F1, evenly curved, ventral face shallowly concave; with 2 rows of 12–15 sharply pointed spinose setae ventrally; dorsal ciliation of decumbent short pale setulae, denser distally; without apicoventral extension on T1 but with strong apical spine. Mid and hind legs slender with fine setae but T3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 10 ). Membrane faintly yellow, veins brownish; R2+3 short and straight, not strongly curved towards C apically, joining C ~ 0.2 distance between end of R1 and R4; R4+5 fork angle acute (~ 60°), distal to position of M1+2 fork by about same length as R4; R5 and M1 convergent distally; vein R5 ~ 2.0X as long as R4; cell bm+dm long, ending after at level of R1, ~ 2.5X as long as cell br. Halter whitish yellow. Abdomen. Tergites 1–6 and 8 brownish; tergite 7 and sternites yellowish. Tergites 7–8 with pale strong setae laterally on posterior margin; tergite 8 slightly shorter than sternite 8. Terminalia. Brown. Cercus narrow with pointed apex, distinctly setose on outer face ( Fig. 11 ); right and left cerci close together dorsally ( Fig. 12 ). Epandrium wide basally and gradually tapered towards apex ( Fig. 11 ), scattered setae on outer face and spine-like setae apically on inner face ( Figs 11, 13 ). Surstylus absent. Hypandrium rather subtriangular ( Fig. 15 ), without distinct setae; gonocoxal apodemes projecting as narrow process just beyond anterior margin of hypandrium ( Figs 11, 14 ). Subepandrial sclerite with median triangular anterior projection and median rounded posterior projection ( Fig. 13 ). Phallus extending just beyond apex of hypandrium, with pointed dorsal projection and median membranous area apically ( Fig. 14 ). Ejaculatory apodeme lamella flattened in vertical plane, short ( Figs 11, 14 ). Body length: 2.0 mm; wing length: 1.4 mm. Female: Unknown.

Type material. HOLOTYPE ♂ “BR[asil], AM[azonas], Manaus. R.[eserva] Ducke. Ig.[arapé] Bolivia. Malaise. 18–22.ii.2003. J.M.F.Ribeiro” ( INPA). PARATYPES: same data as holotype (1 ♂, INPA); Idem, Ig. Ipiranga, Arm, Malaise, v.2003, J.M.F. Ribeiro, J. Vidal & J. Vidal (1 ♂, INPA); Idem, PDBFF /WWF, Proj: Bert Klein. xi.1985, Malaise, Reserva 1301 (1 ♂, INPA).

Holotype condition. Wing mounted on microslide. Abdomen in microtube with glycerin.

Etymology. From the Latin brevius (abbreviate) which refers to the abbreviated R2+3.

Variations. Paratypes with body length varying from 1.8 mm to 2.5 mm and wing length varying from 1.2 mm to 1.8 mm.

Remarks. Hemerodromia breviradia sp. nov. differs from other species of Hemerodromia by abbreviated R2+3 and ejaculatory apodeme with short lamella ( Figs 11, 14 ).

Figures

FIGURES 9 – 15. Hemerodromia breviradia sp. nov., holotype ♂. 9. habitus, lateral view; 10. wing; 11. terminalia, lateral view; 12. cercus, dorsal view; 13. subepandrial sclerite and epandrium, dorsal view; 14. phallus, ejaculatory apodeme, gonocoxal apodeme, hypandrium, lateral view; 15. hypandrium, epandrium and phallus, ventral view.