Neotropical Hemerodromia Meigen (Diptera: Empididae), a world of discovery I: new generic record and new species from Brazilian Amazon Basin
Author
Câmara, J. T.
Author
Plant, A. R.
Author
Rafael, J. A.
text
Zootaxa
2014
3893
2
209
231
journal article
10.11646/zootaxa.3893.2.3
6c8611b1-ea95-4ad9-a047-f6916374a063
1175-5326
252068
68C58684-BD57-4AAB-88EF-69E093AB12DA
Hemerodromia smithi
sp. nov.
(
Figs 70–76
)
Diagnosis
. Tergite 1, anterior margin of tergite 2, tergites 6–7 yellow. Cercus narrow basally, curved medially, bifid at apex (
Fig. 73
); hypandrium narrower and bifid apically (
Fig. 76
); phallus sclerotized, with small membranous area apically (
Fig. 75
).
Description
.
Male
(
Fig. 70
).
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 pair setulae; 2–3 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 1.5X as long as wide, stylus ~ 0.8X as long as postpedicel.
Thorax
(
Fig. 70
). Yellow, short, arched ventrally; antepronotum with anterior margin almost straight and scutum with yellow setae, very small and fine except 1 notopleural.
Legs
(
Fig. 70
). Whitish yellow. C1 ~ 1.2X longer than distance between C1 and C2,
5X
as long as wide with some pale dorsoapical setae. F1 about the same length as C1, 4.0–4.5X as long as wide; femoral formula 5–6/20–21/1+18–19/7–8; 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 of 19–21 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. 70
). Membrane faintly yellow, veins brownish; R2+3 long and straight, not strongly curved towards C apically,,joining C ~ 0.6 distance between end of R1 and R4; R4+5 fork angle acute (~ 60°), distal to position of M1+2 fork by ~ 1.5X as long as R4; R5 and M1 convergent distally and diverging at extreme apex; vein R5 ~ 1.5X as long as R4; cell bm+dm short, ending at level of R1, ~ 2.0X as long as cell br. Halter whitish yellow.
Abdomen
(
Figs 70, 71
). Tergites with posterior margin of sclerites 2, 3–5 and 8 brownish; tergite 1, anterior margin of tergite 2, tergites 6–7 and sternites yellowish. Tergites 7–8 with pale strong setae laterally on posterior margin; tergite 8 as long as sternite 8.
Terminalia
. Brownish. Cercus narrow basally, curved medially, bifid at apex (
Fig. 73
), with very strong inwardly directed setae apically on lower lobe. Epandrium wide, with scattered setae on outer face (
Fig. 73
). Surstylus simple, with distinct setae apically (
Fig. 74
). Hypandrium narrower and bifid apically, without distinct setae; gonocoxal apodeme confined to anterior margin of hypandrium, lacking narrow process. Subepandrial sclerite concave posteriorly, without posterior process. Phallus sclerotized basally, extending beyond hypandrium apex, with small membranous area apically (
Fig. 75
). Ejaculatory apodeme absent.
Body length
:
1.9 mm
;
wing length
:
1.7 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
:
Idem,
21.xi.1992
, Adesiva, Vidal & Jailson (
2 ♂
,
INPA
);
Idem,
Ig. Uberê, Malaise,
16.vi.–21.vii.2003
. J.M.F. Ribeiro & Vidal (
1 ♂
,
MZUSP
);
Idem,
Presidente Figueiredo, Corredeira das Lajes. Arm. Adesiva,
08–12.iv.2013
, J.A. Rafael, J.T. Câmara, C. Maldaner & A.R. Plant (
1 ♂
,
NMWC
).
Holotype
condition
. Good. Not dissected.
Etymology
. The specific name is in tribute to K.G.V. Smith due to his contribution to the knowledge of the Neotropical fauna of
Empididae
, especially that of
Brazil
.
FIGURES 70–76
.
Hemerodromia smithi
sp. nov.
,
70
, holotype ♂.
71–76
, paratype ♂.
70
.
habitus
, lateral view;
71
. abdomen from tergite 4 to terminalia, lateral view;
72
. cercus, dorsal view;
73
. terminalia, lateral view;
74
. subepandrial sclerite, dorsal view;
75
. phallus and hypandrium, lateral view;
76
. hypandrium, ventral view.
Variation
. Body length varying from
1.6 mm
to
2.6 mm
and wing length varying from
1.5 to 2.1 mm
.
Remarks
.
Hemerodromia smithi
sp. nov.
differs from another species by tergite 1, anterior margin of tergite 2, tergites 6–7 yellow and shape of the cercus.