Hemerodromia jauensis , 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: 220-222

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Hemerodromia jauensis

sp. nov.

Hemerodromia jauensis  sp. nov.

( Figs 40–47View FIGURES 40 – 47)

Diagnosis. Similar to H. cercusdilatata  sp. nov., with cercus with a short finger-like process bearing a long spine and an incurved bluntly pointed subapical process ( Fig. 42View FIGURES 40 – 47); subepandrial sclerite with two small, median posterior finger-like processes ( Fig. 45View FIGURES 40 – 47); phallus complex distally with two lateral and two ventral flattened plates and a dorsal process ( Fig. 47View FIGURES 40 – 47).

Description. Male ( Fig. 40View FIGURES 40 – 47). 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 blackvery, narrowly separated on face which bears fine reclinate setulae. Frons with 1–2 setulae; with 3–4 distinct vertical setae, contiguous with uniseriate smaller postocular setae; occiput bearing scattered 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 1.5 X as long as wide, stylus ~ 0.9 X as long as postpedicel. Thorax ( Fig. 40View FIGURES 40 – 47). Elongate, slightly arched ventrally; dorsum yellow, brownish on prothoracic collar, narrowly behind postpronotal lobe; antepronotum with anterior margin almost straight; scutum with setae yellow, very small and fine except 1 notopleural. Legs ( Fig. 40View FIGURES 40 – 47). Whitish yellow. C 1 ~ 1.4 X longer than distance between C 1 and C 2, ~ 6 X as long as wide. F 1 ~ 1.2 X as long as C 1, 4.0– 4.5 X as long as wide; femoral formula 6–7 / 16 / 15 / 7; denticles confined to distal 0.7, becoming closer together distally, black, 2 rows linear, without distal discontinuity. T 1 ~ 0.6 X as long as F 1, evenly curved, ventral face shallowly concave; with 2 rows of 13–16 sharply pointed spinose setae ventrally; dorsal ciliation of decumbent short pale setulae; without apicoventral extension on T 1 but with a short apical spine. Mid and hind legs slender with fine setae but T 3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 41View FIGURES 40 – 47). Membrane slightly yellow, veins brownish; R 2 + 3 long and straight, not strongly curved towards C apically, joining C ~ 0.7 distance between end of R 1 and R 4; R 4 + 5 fork acute (~ 60 °), distal to position of M 1 + 2 fork by about same length as R 4; R 5 and M 1 convergent distally, diverging slightly at extreme apex; vein R 5 ~ 2 X as long as R 4; cell bm+dm short, ending at level R 1, ~ 2 X as long as cell br. Halter whitish yellow. Abdomen ( Figs 40, 42View FIGURES 40 – 47). Tergites 1–6 light brown; tergites 7–8 and sternites yellow with pale setae more conspicuous on posterior margin; tergite 8 shorter than sternite 8. Terminalia. Cercus light brown, short finger-like process bearing a long spine ( Figs 42, 44View FIGURES 40 – 47) and bluntly pointed subapical process incurved ( Fig. 42View FIGURES 40 – 47); left and right cerci closely approximated anterodorsally ( Figs 43, 44View FIGURES 40 – 47), distinctly setose. Epandrium yellowish, curved up distally with rounded apex ( Fig. 42View FIGURES 40 – 47), row of strong setae on outer face ( Fig. 45View FIGURES 40 – 47). Hypandrium whitish yellow, membranous, rather rectangular, not markedly inflated ( Fig. 46View FIGURES 40 – 47); gonocoxal apodeme confined to anterior margin of hypandrium, lacking narrow process. Subepandrial sclerite with two small, median finger-like posterior processes ( Fig. 45View FIGURES 40 – 47), with long setae at apex. Phallus complex distally, with two lateral and two ventral flattened plates and dorsal process and membranous area apically ( Fig. 47View FIGURES 40 – 47). Ejaculatory apodeme absent. Body length: 1.9 mm; wing length: 1.7 mm. Female: Unknown.

Type material. HOLOTYPE ♂ “ Brasil, Amazonas, Pq[parque] N.[acional] Jaú. Ig.[arapé] Miratucu- Ig.[arapé] do Gerlei. 01º 57 '00''S – 61 º 49 '00''w 23–28.VII [1995]. J.A. Rafael & J.F Vidal. 1995 ” ( INPA). PARATYPES: Idem, Manaus, Rod. AM –010, Km 26 Res. Ducke, Ig. Acará. x. 2001, Arm, Malaise, J.F. Vidal (1 ♂, MZUSP); Idem, IG. Tinga. Arm. Malaise, iii. 2003. J.M.E. Ribeiro, J. Vidal & J. Vidal (3 ♂, INPA).

Holotype condition. Good condition. Not dissected.

Etymology. This is a noun referring to the place “Parque Nacional do Jaú” where the specimens were collected.

Variations. Body length varying from 1.6 mm to 2.2 mm and wing length varying from 1.4 to 1.7 mm.

Remarks. Hemerodromia juanensis  sp. nov. is similar to H. cercusdilatata  sp. nov. by T 1 without basal denticle; subepandrial sclerite with 2 finger-like posterior processes; and membranous hypandrium. Hemerodromia juanensis  sp. nov. differs from latter by cercus narrow, with a short finger-like process bearing a long spine and bluntly pointed subapical process incurved; and phallus with two lateral and two ventral flattened plates and a dorsal process apically. In H. cercusdilatata  sp. nov. the cercus is greatly enlarged and phallus is sclerotized basally with membranous area covered with small spicules apically.


Instituto Nacional de Pesquisas da Amazonia


Museu de Zoologia da Universidade de Sao Paulo