Hemerodromia collini , 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: 216-218

publication ID

http://dx.doi.org/10.11646/zootaxa.3893.2.3

publication LSID

lsid:zoobank.org:pub:68C58684-BD57-4AAB-88EF-69E093AB12DA

persistent identifier

http://treatment.plazi.org/id/039887CE-FF89-3A72-BBD2-FBBF6437BC1C

treatment provided by

Plazi

scientific name

Hemerodromia collini
status

sp. nov.

Hemerodromia collini  sp. nov.

( Figs 25–31View FIGURES 25 – 31)

Diagnosis. Best distinguished by the R 4 + 5 fork distal to the position of the M 1 + 2 fork, shorter than the length of R 4 ( Fig. 26View FIGURES 25 – 31); shape of the male cercus being incurved apically, longer than epandrium in lateral view ( Fig. 28View FIGURES 25 – 31) and phallus with two posterolateral pointed projections ( Fig. 30View FIGURES 25 – 31).

Description. Male ( Fig. 25View FIGURES 25 – 31). 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; one pair of distinct vertical setae contiguous with uniseriate smaller 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 1.5 X as long as wide, stylus ~ 0.8 X as long as postpedicel. Thorax ( Fig. 25View FIGURES 25 – 31). Elongate, slightly arched ventrally; dorsum yellow, except brownish on mediotergite and median stripe on prothoracic collar; antepronotum with anterior margin almost straight; scutum with yellow setae, very small and fine except 1 notopleural. Legs ( Fig. 25View FIGURES 25 – 31). Whitish yellow. C 1 ~ 1.4 X longer than distance between C 1 and C2, 6X as long as wide. F 1 ~ 1.1 X as long as C1, 4X as long as wide. Femoral formula 7 / 16–17 / 1 + 14–15 / 5; denticles confined to distal 0.7, 2 rows linear, black, without distal discontinuity, converging distally but divergent at tip. T 1 ~ 0.6 X as long as F 1, evenly curved, ventral face shallowly concave; with 2 rows of 15–18 sharply pointed spinose setae ventrally; dorsal ciliation of decumbent short pale setulae, denser distally; slight apicoventral extension on T 1 bearing strong apical spine. Mid and hind legs slender with fine setae but T 3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 26View FIGURES 25 – 31). Membrane faintly yellow, veins yellowish; R 2 + 3 long and straight, not strongly curved towards C apically, joining C ~ 0.7–0.8 distance between end of R 1 and R 4; R 4 + 5 fork acute (~ 60 °), distal to position of M 1 + 2 fork by shorter than R 4; R 5 and M 1 diverging distally; vein R 5 ~ 3 X as long as R 4; cell bm+dm short, ending at level of R 1, ~ 2 X as long as cell br. Halter whitish yellow. Abdomen ( Figs 25, 27View FIGURES 25 – 31). Tergites 1 and 7 and sternites yellowish, tergites 2–6 and 8 brownish with distinct setae on posterior margin; tergite 8 shorter than sternite 8. Terminalia. Brownish. Cercus narrow, curved up distally with rounded apex ( Figs 27, 28View FIGURES 25 – 31); left and right cerci closely approximated anterodorsally ( Fig. 29View FIGURES 25 – 31). Epandrium wide, subrectangular in lateral view, with strong setae on outer face at apex ( Fig. 28View FIGURES 25 – 31). Surstylus ( Fig. 29View FIGURES 25 – 31) bilobed, with spine-like setae on inner face of outer lobe. Hypandrium rather rounded in ventral view ( Fig. 31View FIGURES 25 – 31), not markedly inflated, with distinct setae; gonocoxal apodeme confined to anterior margin of hypandrium, lacking narrow process. Subepandrial sclerite concave on anterior margin, two short finger-like posterior processes with long setae at apex ( Fig. 29View FIGURES 25 – 31). Phallus sclerotized with two posterolateral pointed projections, extending well beyond hypandrium apex, apical membranous area covered with minute dark spicules ( Fig. 30View FIGURES 25 – 31). Ejaculatory apodeme absent. Body length: 3.1 mm; wing length: 2.4 mm. Female: Unknown.

Type material: HOLOTYPE ♂ “ BRASIL, Amazonas, Manaus, R.[eserva] Ducke, 5.viii. 1993. Ig.[arapé] Acará. Malaise J. Vidal” ( INPA). PARATYPES. Same data as holotype (4 ♂, MZUSP); Idem, 2.ix. 1993 (3 ♂, NMWC); Idem, x. 2001, Arm. Malaise, J.F. Vidal (7 ♂, INPA, 4 ♂, MNRJ, 3 ♂, CNC); Idem, Ig. Tinga. Arm. Malaise, iii. 2003, J.M.E.Ribeiro, J. Vidal & J. Vidal (1 ♂, MPEG).

Holotype condition. Good condition. Not dissected.

Etymology. The specific epithet is in tribute to J.E. Collin in recognition of his contribution to the knowledge of the Neotropical fauna of Empididae  .

Variations. Body varying from 2.8 mm to 3.6 mm. Wing length varying from 2 mm to 2.5 mm.

Remarks. Hemerodromia collini  sp. nov. is similar to H. maturaca  sp. nov. by the R 4 + 5 fork distal to the position of the M 1 + 2 fork, shorter than the length of R 4; subepandrial sclerite with 2 finger-like posterior processes; and epandrium subrectangular. Hemerodromia collini  sp. nov. differs from the latter by the shape of the male cercus being incurved apically, and phallus with 2 posterolateral pointed projections. In H. maturaca  sp. nov. the cercus is almost straight apically and phallus have no posterolateral pointed projections.

INPA

Instituto Nacional de Pesquisas da Amazonia

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

NMWC

National Museum of Wales

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

CNC

Canadian National Collection of Insects, Arachnids, and Nematodes

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Empididae

Genus

Hemerodromia