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

https://doi.org/ 10.11646/zootaxa.3893.2.3

publication LSID

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

DOI

https://doi.org/10.5281/zenodo.6138929

persistent identifier

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

treatment provided by

Plazi

scientific name

Hemerodromia collini
status

sp. nov.

Hemerodromia collini View in CoL sp. nov.

( Figs 25–31 View FIGURES 25 – 31 )

Diagnosis. Best distinguished by the R4+5 fork distal to the position of the M1+2 fork, shorter than the length of R4 ( Fig. 26 View FIGURES 25 – 31 ); shape of the male cercus being incurved apically, longer than epandrium in lateral view ( Fig. 28 View FIGURES 25 – 31 ) and phallus with two posterolateral pointed projections ( Fig. 30 View FIGURES 25 – 31 ).

Description. Male ( Fig. 25 View 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 1.5X as long as wide, stylus ~ 0.8X as long as postpedicel. Thorax ( Fig. 25 View 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. 25 View FIGURES 25 – 31 ). Whitish yellow. C1 ~ 1.4X longer than distance between C1 and C2, 6X as long as wide. F1 ~ 1.1X 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. T1 ~ 0.6X as long as F1, 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 T1 bearing strong apical spine. Mid and hind legs slender with fine setae but T3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 26 View FIGURES 25 – 31 ). Membrane faintly yellow, veins yellowish; R2+3 long and straight, not strongly curved towards C apically, joining C ~ 0.7–0.8 distance between end of R1 and R4; R4+5 fork acute (~ 60°), distal to position of M1+2 fork by shorter than R4; R5 and M1 diverging distally; vein R5 ~ 3X as long as R4; cell bm+dm short, ending at level of R1, ~ 2X as long as cell br. Halter whitish yellow. Abdomen ( Figs 25, 27 View 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, 28 View FIGURES 25 – 31 ); left and right cerci closely approximated anterodorsally ( Fig. 29 View FIGURES 25 – 31 ). Epandrium wide, subrectangular in lateral view, with strong setae on outer face at apex ( Fig. 28 View FIGURES 25 – 31 ). Surstylus ( Fig. 29 View FIGURES 25 – 31 ) bilobed, with spine-like setae on inner face of outer lobe. Hypandrium rather rounded in ventral view ( Fig. 31 View 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. 29 View FIGURES 25 – 31 ). Phallus sclerotized with two posterolateral pointed projections, extending well beyond hypandrium apex, apical membranous area covered with minute dark spicules ( Fig. 30 View 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 R4+5 fork distal to the position of the M1+2 fork, shorter than the length of R4; 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

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