Hemerodromia brevicercata , Câmara, Josenir T., Takiya, Daniela M., Plant, Adrian R. & Rafael, José A., 2015

Câmara, Josenir T., Takiya, Daniela M., Plant, Adrian R. & Rafael, José A., 2015, Neotropical Hemerodromia Meigen (Diptera: Empididae), a world of discovery II: New species from Atlantic forest, Brazil, Zootaxa 4028 (2), pp. 197-214: 198

publication ID

http://dx.doi.org/10.11646/zootaxa.4028.2.2

publication LSID

lsid:zoobank.org:pub:2ED815F3-73F8-41EF-905E-0BB98444E7FA

persistent identifier

http://treatment.plazi.org/id/A1138055-FFBE-CB0E-A7C3-2893FCF7FEB0

treatment provided by

Plazi

scientific name

Hemerodromia brevicercata
status

sp. nov.

Hemerodromia brevicercata  sp. nov.

( Figs 1–7View FIGURES 1 – 7)

Diagnosis. Black species with legs whitish yellow, except fore trochanter and femur brownish. Head rounded ( Fig. 1View FIGURES 1 – 7); cercus much shorter than length of epandrium ( Fig. 3View FIGURES 1 – 7); epandrium rather narrower apically, with median row of spine-like setae on inner face ( Figs 5, 7View FIGURES 1 – 7).

Description. Male. Head. Dark brown to black, mouthparts yellow with all setae whitish. Rounded ( Fig. 1View FIGURES 1 – 7); ocellar triangle with 1 pair of proclinate setae; anterior ocellus larger. Eyes iridescent black, close together on face bearing fine reclinate setulae. Frons with 1–2 frontal setulae; 1 pair of distinct vertical setae contiguous with uniseriate row of smaller postocular setae. Occiput bearing scattered fine hairs. Clypeus with rather dense, short downwardly directed pile. Proboscis slightly curved with yellow setae. 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. 1View FIGURES 1 – 7). Short, slightly arched ventrally; dark brown to blackish; antepronotum with anterior margin almost straight and scutum with yellow setae, very small and fine except one notopleural. Legs ( Fig. 1View FIGURES 1 – 7). Whitish yellow, except fore trochanter and femur brownish. C 1 ~ 1.5 X longer than distance between C 1 and C2, 7X as long as wide with some pale dorsoapical setae. F 1 about 1.1 X as long as C 1, 3.0– 3.5 X as long as wide. Femoral formula 6– 7 / 14–15 / 15–16 / 7–8; denticles confined to distal 0.6, becoming closer together distally, black, 2 rows linear, without distal discontinuity, converging at apex. T 1 ~ 0.6 X as long as F 1, evenly curved, ventral face shallowly concave; about 9–10 sharply pointed spinose setae ventrally; dorsal ciliation of decumbent short, pale setulae, denser distally; without apicoventral extension on T 1 but with strong, black subapical spine. Mid- and hind legs slender with fine setae; T 3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 2View FIGURES 1 – 7). Membrane slightly yellow, veins yellowish; R 2 + 3 long and straight, not strongly curved towards C apically, joining C ~ 0.6–0.7 distance between end of R 1 and R 4 + 5; R 4 + 5 fork acute (~ 60 °), distal to position of M 1 + 2 fork by shorter than length of R 4; R 5 and M 1 convergent distally; R 5 ~ 2.5 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. Tergites and sternites brownish; tergite 8 shorter than sternite 8. Terminalia. Dark brown to black. Cercus very short ( Fig. 3View FIGURES 1 – 7), not reaching half length of epandrium, wide basally and pointed at apex, left and right cerci closely approximated dorsally, distinctly setose. Epandrium wide, rounded at apex ( Fig. 3View FIGURES 1 – 7), distinct strong setae on outer face; median row of stronger setae on inner face ( Figs 5, 7View FIGURES 1 – 7); articulated to hypandrium by weak point anteriorly. Surstylus absent. Hypandrium inflated, rather rounded, with strong setae; gonocoxal apodeme projecting as narrow process just beyond anterior margin of hypandrium. Subepandrial sclerite with short triangular anterior projection; 2 posterior fine and long finger-like processes with long setae at apex ( Fig. 4View FIGURES 1 – 7). Phallus strongly sclerotized ( Fig. 6View FIGURES 1 – 7), extending well beyond hypandrium apex, bluntly pointed apically, with apical membranous area, covered with spicules and 2 dorsal hook-like processes apically ( Fig. 7View FIGURES 1 – 7). Ejaculatory apodeme absent. Specimen length: 2.8 mm; wing length: 2.1 mm. Female. Unknown.

Geographic distribution. Brazil (Ceará State).

Type material. HOLOTYPE ♂, “ Brazil, CE[Ceará], Ubajara, P.[arque] N.[acional] Ubajara, Cachoeira do Cafundó. 03º 50 ' 13 ''S – 40 º 54 ' 35 ''W, Malaise, 13–17.xi. 2012. F.Limeira-de-Oliveira, D.W.A.Marques, cols.” ( CZMA). Paratypes: Same data as holotype (3 ♂, CZMA, 3 ♂, MNWC, 2 ♂, MNRJ). Idem, 18–30.xi. 2012, F. Limeira-de-Oliveira, J.S. Pinto Júnior, cols. (4 ♂, INPA). Idem, 01– 15.xii. 2012 (8 ♂, INPA).

Holotype condition. Good. Not dissected.

Etymology. From the Latin brevis, referring to short length of the cercus.

Variations. Paratypes with body length varying from 2.1–3.1 mm and wing length varying from 1.6–2.6 mm

Remarks. Hemerodromia brevicercata  sp. nov. appears to belong to the informal empiformis species group proposed by MacDonald (1998), on the basis of the short cercus, but differs from other species of this group by having a rounded head and different shaped epandrium. Hemerodromia brevicercata  sp. nov. is similar to H. coleophora Melander  in sharing a similar shaped cercus ( Fig. 10View FIGURES 8 – 14 vs. fig. 17 in MacDonald, 1998). In H. brevicercata  sp. nov. the head is rounded ( Fig. 1View FIGURES 1 – 7), fore trochanter and femur are brownish ( Fig. 1View FIGURES 1 – 7) and epandrium rather narrower apically, with median row of stronger setae on inner face ( Figs 5, 7View FIGURES 1 – 7). In H. coleophora  the head is flattened dorsoventrally, legs yellowish and epandrium slender and straight basally, and then abruptly enlarged at or slightly beyond the distal third ( MacDonald, 1998, fig. 17).

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

INPA

Instituto Nacional de Pesquisas da Amazonia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Empididae

Genus

Hemerodromia