美翅广口蝇属 Pterogenia

目 (Order):双翅目 Diptera

第五腹部背板比第三腹部背板短,雌性则确实第五腹部背板;bm翅室显著较大,R脉基部有黑色(极少数时候黄色)短刚毛。至少在下端区域的脸部凹陷。

Tergite 5 much shorter than tergite 3, absent in female. Cell bm enlarged, usually 1.3–1.5 as long as bcu and 1.25–1.6 times shorter than discal medial cell. Face concave at least in its lower part. Stem R vein (basal part of R before branch of humeral crossvein) covered by short black, rare yellow setulae

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