Laphystiinae

Londt, Jason G. H., 2007, A review of Afrotropical Perasis Hermann, 1905 (Diptera: Asilidae: Laphriinae), Zootaxa 1521, pp. 9-18 : 12-13

Provisional key to the Afrotropical genera previously included in the Laphystiinae

1. C continues around entire wing margin (although weakly posteriorly); postpronotal lobe without macrosetae; hind femur slender and without ventral tubercles; abdominal terga without discal setae beyond T1 ... ........................................................................................................................................... Perasis Hermann

- C continues around wing margin to Cu+1A, leaving anal cell and alula without a bordering vein; postpronotal lobe with a number of short macrosetae; hind femur robust, with a swollen appearance and usually equipped with ventrally-positioned tubercles; abdominal terga with discal setae beyond T1 ........... 2

2. Antennal postpedicel elongate; proboscis large and protruding well beyond lower epistomal margin; hind leg of male with a small tibial spur; hind femur always with well-developed tubercles the larger ones often coalescing with each other; usually large species (wing length from humeral crossvein to tip> 7 mm), often with golden abdominal setation .................................................................. Hoplistomerus Macquart

- Antennal postpedicel clavate; proboscis small and hardly protruding beyond lower epistomal margin; hind leg of male lacking a tibial spur; hind femur usually with small tubercles, and, when present, do not coalesce; usually small species (wing length from humeral crossvein to tip <7 mm) and lacking golden abdominal setation ....................................................................................................... Trichardis Hermann