calypter

Upper calypter ridge setulose, lower calypter broad, truncate posteriorly, extending under base of scutellum (fig.11).

Calypter yellowish with dense brownish microtrichae, margin with thin, sparse long setulae.

Wings with internal margin of the inferior calypter truncated, projecting towards the scutellum; superior calypter slightly infuscate around it (Figs.

Legs wholly black, mid femur with complete row of pv, upper calypter brownish suffused, lower calypter paler coei --Legs uniformly testaceous to dark brown, mid femur with 3-5 pv on basal half, calypters yellow to yellow-brown alaba 7.

Anterior spiracle whitish; lower calypter whitish with darkish setulae; the branch of vein M1 + 2 forming acute angle as it approaches the wing edge.

quadricornis Melander, but it can be separated from the latter by the following features: halter darkish brown; calypter yellowish; surstylus narrowed apically; cercus flat apically.

It unquestionably belongs to the calyptrate family Anthomyiidae because of the following combination of characters: (1) head holoptic in male, dichoptic in female; (2) female with a pair of crossed interfrontal setae; (3) lower calypter well developed; (4) tiny hair-like setulae present beneath tip of scutellum; (5) vein A1 extended to wing margin as a weak fold; (6) male surstyli and cerci united by vertical sclerotized connections immediately distal to lateral cercal apodemes; (7) spiracles VI and VII present in female abdomen.

Margin of upper calypter whitish yellow with fringe of short white setulae; margin of lower calypter blackish brown with short white setulae.

--lower calypter well developed dark white at base only.

Lower calypter yellow with brownish cilia, haltere yellow.