Lispocephala flaviscutella, Xue & Zhang, 2011

Xue, W. - Q. & Zhang, X. - S., 2011, Geographic Distribution Of Lispocephala Pokorny (Diptera: Muscidae), With Descriptions Of New Species From China, Acta Zoologica Academiae Scientiarum Hungaricae 57 (2), pp. 161-202 : 168-170

Lispocephala flaviscutella sp. n.

( Figs 19–23 )

Holotype: male, Xiaomengyang (22°36’N, 101°50’E), Xishuangbanna , Yunnan Province, 850 m, 9. ix. 1958, collected by YIRAN ZHANG.

Paratype: male, same data as holotype.

Male: Body length 3.3 mm.

Head: Eyes bare, lower posterior margin not concave. Frons at vertex about 0.32 times as wide as head, becoming wide towards lunule. Frontal vitta black in ground-color, with faint gray pruinosity (lower part red-yellow). Frontal triangle wide, with faint gray pruinosity, reaching to anterior margin of frons. Profrons projecting, frontal angle obtuse. Ocellar seta not developed, shorter than frons width, longer than outer vertical. Fronto-orbital plate with faint gray pruinosity. Face and parafacial yellow. Parafacial about 1/5 of flagellum 1 width. Gena yellow, about 1/10 of eye height. Occiput black in ground colour, with faint gray pruinosity. Antenna yellow, flagellum 1 about twice as long as pedicel. Distance between end of antenna and epistoma about 1/3 of flagellum 1 length; arista plumose, the longest hair as long as flagellum 1 width. Palpi yellow, haustellum brown-yellow.

Thorax: Dark in ground colour, faint gray dusted, without distinct vitta. Acr in 2 rows. 2+3 dc. 0+2 ial. Scutellum red-yellow in distal part. 2 proepisternal setae; 2 proepimeral.

Wings: Hyaline, veins yellow. Costal spine distinct. Calypters faint yellow. Lower calypter about 1.3 times as long as upper. Halters yellow.

Legs: Entirely yellow (mid legs absent). Hind femur with 5 av (2 subbasal distinct short), 1 row of ad, 1 subapical pd, 2 pv in basal half, 1 subapical pv. Hind tibia with 1 av, 2 ad, 2 pd. Pulvilli big, oval.

Abdomen: Cylindric, longer than thorax, lateral and dorsal surfaces of tergites 4–5 dark brown in ground colour, with gray pruinosity, remaining yellow, without median vitta, abdominal tergites 3–5 each with 1 pair of rounded brown patches (the diameter of patch about 1/3–1/2 of tergite length). Tergite 5 with developed discal and marginal setae. Tergite 8 with 2 discal bristles. Posterior margin of paramere with spinous hairs ( Fig. 19 ). End of cerci with process forwards ( Fig. 23 ).

Female: Unknown.

Etymology: The specific name refers to male scutellum red-yellow in distal part. Flavus means yellow and scutella means scutellum in Latin.

Remarks: Resembles L. boops (THOMSON, 1869) , but can be recognised by scutellum red-yellow in distal part; surstyli short; end of cerci with process.

Figures

Figs 19–23. Lispocephala flaviscutella sp. n.: 19 = phallosome; 20 = sternite 5; 21 = cerci, posterior view; 22 = lobe of sternite 5, profile view; 23 = terminalia, profile view. (Scale bars 0.2 mm each)