Cythereinae

Greathead, D. J. & Evenhuis, N. L., 2001, Annotated keys to the genera of African Bombylioidea (Diptera: Bombyliidae; Mythicomyiidae), African Invertebrates 42 (1820), pp. 105-224 : 173-174

Key to the tribes and genera of Cythereinae

1 Head with face very broad, antennae separated by more than length of scape; body with abundant hair and/or scales as well bristles............................ Cythereini …2 – Head with face not exceptionally broad, antennae separated by less than length of scape; body with sparse hair and/or small scales, bristles strong and conspicuous .......................................................................................................... 4 2 Cell r 5 closed and usually stalked; abdomen elongate conical ................................. Callostoma Macquart – Cell r 5 open ........................................................................................................... 3

3 Pulvilli rudimentary; vestiture predominantly grey to brown; wing infuscation often feint and with paler areas within the infuscated part; sexes similar in appearance ............................................................................. Cytherea Fabricius

– Pulvilli normally developed; vestiture black with patches of white to yellow hair and scales; wing infuscation uniformly dark; male with an elongate, conical, hairy abdomen; female with a broad, scaly abdomen, and superficially tachinidlike ......................................................................................... Chalcochiton Loew

4 First flagellomere with numerous small bristles before the apex; metanotum clearly visible between scutellum and first abdominal tergum ................... Cylleniini …5

– First flagellomere with, at most, one small macrochaeta on dorsal side; metanotum almost completely hidden by the scutellum which overhangs the first abdominal tergum ................................................................................................... Enicini …7

5 Proboscis not projecting beyond antennae; flagellum broad and not much longer than scape; wings with spots; abdomen short ............................ Cyllenia Latreille

– Proboscis projecting by at least length of head; flagellum lanceolate and as long as scape and pedicel together; wings sometimes with spots but mostly or completely hyaline; abdomen elongate ................................................................................... 6

6 Face conically produced; proboscis 2–4 x as long as head; occiput not broader above than below .................................................................. Amictus Wiedemann

– Face gently rounded; proboscis about as long as head; occiput distinctly broader above ................................................................................................ Sinaia Becker

7 Cell r 1 divided by crossveins; frons with numerous strong bristles; face with abundant hair ................................................................................................ Enica Macquart

– Cell r 1 without crossveins; frons with some stiff hairs only; face with few if any hairs ....................................................................................... Nomalonia Rondani