Hemerodromia epandriocurvialis , 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: 218-220

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-FF87-3A70-BBD2-FCB66234BCCE

treatment provided by

Plazi

scientific name

Hemerodromia epandriocurvialis
status

sp. nov.

Hemerodromia epandriocurvialis  sp. nov.

( Figs 32–39View FIGURES 32 – 39)

Diagnosis. F 1 with strong basiventral process. T 1 with strong apicoventral extension, bearing strong apical spine ( Fig. 32View FIGURES 32 – 39); cercus wide basally, bifid apically, with lower projection longer and narrower ( Figs 35, 36View FIGURES 32 – 39); epandrium in-turned distally, narrowly rounded apically, with brush of setae below apex ( Fig. 35View FIGURES 32 – 39); sperm pump directed dorsally ( Fig. 38View FIGURES 32 – 39).

Description. Male ( Fig. 32View FIGURES 32 – 39). Head. Dark brown to black, antenna and mouthparts yellow, 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; 1–2 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 1.3 X as long as wide, stylus ~ 0.9 X as long as postpedicel. Thorax ( Fig. 32View FIGURES 32 – 39). Elongate, slightly arched ventrally; dorsum yellow, except brownish on prothoracic collar, narrowly behind postpronotal lobe, posterolaterally above wing base on scutum, strong median longitudinal band on scutum, suture between katepisternum and meron, katepisternum ventrally behind C 1, scutellum and mediotergite; antepronotum with anterior margin almost straight; scutum with yellow setae, very small and fine except 1 notopleural. Legs ( Fig. 32View FIGURES 32 – 39). Whitish yellow, except tarsomeres 4–5 of all legs. C 1 ~ 1.3 X longer than distance between C 1 and C2, 6X as long as wide with some pale dorsoapical setae. F 1 ~ 1.1 X as long as C 1, 3.0– 3.5 X as long as wide. Femoral formula 6 / 23–24 / 1 + 19–20 / 5; strong basiventral process; denticles confined to distal 0.8, becoming closer together distally, black, 2 rows linear, without distal discontinuity. T 1 ~ 0.7 X as long as F 1, evenly curved, ventral face shallowly concave; with 2 rows of 15–19 sharply pointed spinose setae ventrally; dorsal ciliation of decumbent short pale setulae, denser distally; with strong apicoventral extension on T 1 bearing strong apical spur. Mid and hind legs slender with fine setae but T 3 with ‘comb’ of short setae posteroapically. Wing ( Fig. 33View FIGURES 32 – 39). Membrane faintly yellow, veins brownish; R 2 + 3 long and straight, not strongly curved towards C apically, joining C ~ 0.6 distance between end of R 1 and R 4; R 4 + 5 fork angle acute (~ 60 °), distal to position of M 1 + 2 fork by about 2.0X as long as R 4; R 5 and M 1 convergent distally and diverging at extreme apex; vein R 5 ~ 2.5 X as long as R 4; cell bm+dm short, ending at level of R 1, ~2.0X as long as cell br. Halter whitish yellow. Abdomen ( Figs 32, 33View FIGURES 32 – 39). Tergites 1–6 and 8 brownish; tergite 7 and sternites yellowish. Tergites 7–8 with pale strong setae laterally on posterior margin; tergite 8 shorter than sternite 8. Terminalia. Brown. Cercus wide basally, bifid apically, with lower projection longer and narrower, distinctly setose on outer face ( Figs 35, 36View FIGURES 32 – 39); left and right cerci close together anterodorsally ( Fig. 36View FIGURES 32 – 39). Epandrium wide, in-turned distally, apically narrower and rounded, scattered setae on outer face and brush of setae on inner face below narrowing apex ( Fig. 35View FIGURES 32 – 39). Surstylus absent. Hypandrium rather rectangular ( Fig. 39View FIGURES 32 – 39), without distinct setae; gonocoxal apodeme projecting as narrow process just beyond anterior margin of hypandrium ( Figs 35, 38View FIGURES 32 – 39). Subepandrial sclerite narrow, without posterior projections ( Fig. 37View FIGURES 32 – 39). Phallus sclerotized, extending just beyond hypandrium apex, with narrow membranous area apically without scattered spicules ( Fig. 38View FIGURES 32 – 39). Ejaculatory apodeme as antero-posteriorly flattened plate; sperm pump flattened laterally, curved upwards ( Fig. 38View FIGURES 32 – 39). Body length: 2.9 mm; wing length: 2.4 mm. Female.Unknown.

Type material. HOLOTYPE ♂ “BR[asil], AM[azonas], Novo Airão. Ig.[arapé] Mato Grosso. 02º 48 ' 43 ''S – 60 º 55 ' 30.1 ''W. Varredura [sweeping]. 30.iii. 2013. J.A. Rafael, A.R.Plant & J.T.Câmara” ( INPA). PARATYPES: Idem, Bl – 2, Suspensa, Ig. clareira. 1–10.vi. 1998 (1 ♂, INPA); Idem, R. Ducke, Ig. Acará, 11–13.x. 2002, Malaise, Vidal (1 ♂, INPA); Idem, Puraquequara. Malaise-Igarapé, Col. J. Vidal, 13.xi. 1998 (1 ♂, NMWC); Idem, 25.xi. 1998 (2 ♂, MZUSP); Idem, 23.xi. 1998 (1 ♂, MPEG).

Holotype condition. Good. Not dissected.

Etymology. From the Greek curvus (curved) which refers to the curved epandrium.

Variation. Body length varying from 2.4 mm to 3.1 mm. Wing length varying from 2.1 mm to 2.5 mm.

Remarks. Hemerodromia epandriocurvialis  sp. nov. appears to belong in the informal H. supertitiosa  species - group (sensu MacDonald, 1998: 794) in having F 1 with a prominent basiventral process. Hemerodromia epandriocurvialis  sp. nov. is similar to H. mesomalaena Bezzi, 1909  by a strong median longitudinal band on scutum; epandrium wide, in-turned distally, apically narrower and rounded and brush of setae below the narrowing apex; and sperm pump directed dorsally. Hemerodromia epandriocurvialis  sp. nov. differs from latter by T 1 with strong apicoventral extension and cercus wide basally, bifid apically, with lower projection longer and narrower. In H. mesomalaena  the T 1 is without an apicoventral extension and the cercus is not bifid apically. This is a Neotropical species and it is not formally included in the informal H. supertitiosa  group, but it has all diagnostic characters to belong to this species group.

INPA

Instituto Nacional de Pesquisas da Amazonia

NMWC

National Museum of Wales

MZUSP

Museu de Zoologia da Universidade de Sao Paulo

MPEG

Museu Paraense Emilio Goeldi

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Empididae

Genus

Hemerodromia