Hemerodromia longilamellata sp. nov. (Figs 56–61) Diagnosis. Extensive membranous area between segment 8 and terminalia (Fig. 56). Cercus wide basally and gradually tapering towards the apex (Fig. 58); gonocoxal apodemes very long, projecting well beyond anterior margin of the hypandrium (Figs 58, 60, 61); ejaculatory apodeme a unilamellar vertically flattened plate, ~0.5X as long as gonocoxal apodeme (Figs 58, 60, 61). Description. Male (Fig. 56). Head. Dark brown to black, antenna and mouthparts yellow with all setae whitish; ocellar triangle with 1 pair of proclinate setae; anterior ocellus larger. Eyes iridescent black, very narrowly separated on face which bears fine reclinate setulae. Frons with 1–2 setulae; small 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 2X as long as wide, stylus ~ 0.8X as long as postpedicel. Thorax (Fig. 56). Elongate, slightly arched ventrally; dorsum yellow, except brownish on prothoracic collar, narrowly behind postpronotal lobe, posterolaterally above wing base on scutum and laterally on scutellum and mediotergite; antepronotum with anterior margin almost straight; scutum with yellow setae, very small and fine except 1 notopleural. Legs (Fig. 56). Whitish yellow. C1 ~ 1.3X longer than distance between C1 and C2, 5X as long as wide with some pale dorsoapical setae. F1 ~1.2X as long as C1, 5.0X as long as wide; femoral formula 7/25/1 +16/ 6; denticles confined to distal 0.8, 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 14–17 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. 57). Membrane faintly yellow, veins brownish; R2+3 long and straight, not strongly curved towards C apically, joining C ~ 0.7 distance between end of R1 and R4; R4+5 fork angle acute (~ 60°), distal to position of M1+2 fork by about 1.5X as long as R4; R5 and M1 convergent distally and diverging at extreme apex; vein R5 ~ 2.0X as long as R4; cell bm+dm short, ending before at level of R1, ~2.0X as long as cell br. Halter whitish yellow. Abdomen (Fig. 56). Tergites 1–6 and 8 brownish; tergite 7 and sternites yellowish. Tergites with distinct setae on posterior margin; tergite 8 shorter than sternite 8. Terminalia. Brown. Cercus wide basally and gradually tapering towards the apex (Fig. 58); left and right cerci distinctly separated anterodorsally (Fig. 59), distinctly setose on outer face. Epandrium rounded at apex (Fig. 58), scattered setae on outer face. Surstylus shorter than epandrium, with spine-like setae apically (Figs 59, 61). Hypandrium rather subrectangular in ventral view, without distinct setae (Fig 61); gonocoxal apodeme very long, projecting well beyond anterior margin of hypandrium (Figs 58, 60, 61). Subepandrial sclerite narrow, with a small median posterior process (Fig. 59). Phallus sclerotized, extending just beyond hypandrium apex, with narrow membranous area apically lacking scattered spicules (Fig. 60). Ejaculatory apodeme a unilamellar plate flattened in vertical plane, ~0.5X as long as gonocoxal apodeme (Figs 58, 60, 61). Body length: 2.8 mm; wing length: 2.1 mm. Female: Unknown. Type material. HOLOTYPE ♂ “ Brasil, Manaus, [Reserva Ducke] IG.[arapé] Tinga. Arm.[adilha] Malaise. iii.2003. J.M.E.Ribeiro, J.Vidal & Jailson Vidal” (INPA). PARATYPES: Idem, R.[eserva] Ducke, 21.xi.1992, Adesiva, Vidal & Jailson (1 ♂, MZUSP); Idem, Novo Airão, Ig.[arapé] Mato Grosso, 02º48'43''S – 60º55'30.1''W, Varredura, 30.iii.2013, J.A. Rafael, A.R.Plant & J.T. Câmara (3 ♂, INPA). Holotype condition. Postpedicel lost. Wing mounted on microslide. Terminalia in microtube with glycerin. Etymology. From the Latin longi (long) which refers to the very long gonocoxal apodeme. Variations. Body length varying from 2.4 mm to 3.2 mm and wing length varying from 1.8 mm to 2.4 mm. Remarks. Hemerodromia longilamellata sp. nov is similar to H. lamellata sp. nov. both of which have extensive membranous area between segment 8 and terminalia; ejaculatory apodeme and gonocoxal apodemes very long. Hemerodromia longilamellata sp. nov differs from the latter by the cercus wide basally and gradually tapering towards the apex, epandrium rounded at apex and phallus with narrow membranous area apically lacking scattered spicules. In H. lamellata sp. nov. the cercus wide basally and curved up distally, epandrium inflated basally, narrower distally and phallus with membranous area covered with spicules.

Published as part of 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, pp. 209-231 in Zootaxa 3893 (2) on pages 224-226, DOI: 10.11646/zootaxa.3893.2.3, http://zenodo.org/record/252068