Nasimyia nigripennis, Yang, Zaihua & Yang, Maofa, 2010

Yang, Zaihua & Yang, Maofa, 2010, A new genus and two new species of Pachygastrinae from the Oriental region (Diptera: Stratiomyidae), Zootaxa 2402, pp. 61-67 : 65

publication ID

https://doi.org/ 10.5281/zenodo.194099

DOI

https://doi.org/10.5281/zenodo.6205199

persistent identifier

https://treatment.plazi.org/id/F06A87E1-FFD2-FFFE-FF02-006DFDF0F875

treatment provided by

Plazi

scientific name

Nasimyia nigripennis
status

sp. nov.

Nasimyia nigripennis View in CoL sp. nov.

( Figs 11–20 View FIGURES 11 – 20 )

Diagnosis. Body more slender, head only slightly broader than thorax ( Fig. 11 View FIGURES 11 – 20 ); last flagellomere swollen toward apex ( Fig. 17 View FIGURES 11 – 20 ); wing brownish infuscate, darker anterior margin not interrupted by contrasting hyaline area ( Fig. 12 View FIGURES 11 – 20 ); posterior margin of male genital capsule slightly emarginated in middle ( Fig. 20 View FIGURES 11 – 20 ), aedeagal complex with short proximal part ( Fig. 19 View FIGURES 11 – 20 ).

Descriptions. Male. Body length 4.0–5.0 mm, wing length 3.5–4.2 mm.

Head ( Figs 11, 13–14 View FIGURES 11 – 20 ) hemispherical, width of head equal to thoracic width at wing base, about 0.6 times as long as broad in dorsal view and 0.8 times longer than high in profile. Other characters as in preceding species but scape and pedicel rather yellow and last flagellomere distinctly swollen. Relative length of antennal scape, pedicel and flagellomeres as 1.5:1.6:1.8:1.5:1.2:1.2:1.7:1.5:1.5:2.3, they relative width of antennal scape, pedicel and flagellomeres 0.7:0.7:0.7:0.8:0.8:0.8:1.0:0.8:0.8:1.4. Face shining black, with blackhairs on facial projection, remaining part with white hairs. Palpus dark brown to black.

Thorax ( Fig. 11 View FIGURES 11 – 20 ) relatively stout, approximately 1.7 times longer than wide, yellow line between postpronotal callus and wing base not visible. Legs yellow, each tarsus darkened apically, with yellowish brown short hairs. Wing ( Fig. 7 View FIGURES 1 – 10 ) brown infuscated with dark brown anterior margin.

Abdomen ( Fig. 11 View FIGURES 11 – 20 ) narrower than the thorax, approximately 3.0 times longer than wide. Coloration and pubescence as in N. megacephala . Male genitalia ( Figs. 18–20 View FIGURES 11 – 20 ) yellowish brown to dark brown; epandrium ( Fig. 18 View FIGURES 11 – 20 ) trapezoid, broader than proctiger; each original gonocoxite ( Figs. 20 View FIGURES 11 – 20 ) with a dark elliptical spot near basis of gonostylus; aedeagal complex ( Fig. 19 View FIGURES 11 – 20 ) tripartite in distal part, lobes twice as long as length of undivided proximal part.

Female. Body length 5.0–6.0 mm, wing length 4.0–5.0 mm. Head ( Figs 15–16 View FIGURES 11 – 20 ) with separated eyes, about 0.7 times as long as broad in dorsal view and 0.8 times longer than high in profile; frons shining black, bare in central area, without longitudinal median groove, broadened toward anterior margin; upper frons with lateral longitudinal line consisting of short white hairs along each eye margin; the narrowest width of frons occupying about one third of head width. Abdominal cercus two-segmented.

Specimens examined. Holotype 3, China, Yunnan Province, Mt. Laifengshan, 1400m, Tengchong, 6.vi.2009, Zaihua Yang & Bin Li legs. Paratypes: 123, 6ƤƤ, with same labels as holotype; 13, 2ƤƤ, Mts. Gaoligong, 1800–2400m, Baoshan, Yunnan Province, 29.v. – 3.vi. 2009, Zaihua Yang & Bin Li legs.

Etymology. The specific name is composed from the Latin words “niger” (= black) and penna (= wing) referring to the blackish wing.

Remarks. This new species is similar to P. megacephala sp. nov., but it can be distinguished by the more slender body, the head only slightly broader than the thorax, the distinctly swollen last flagellomere and the brownish infuscate wing without any contrasting hyaline spots although the anterior margin is distinctly darker than the rest of the membrane.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Stratiomyidae

Genus

Nasimyia

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