Aphaniosominae, Ebejer, 2009

Ebejer, Martin J., 2009, A revision of Afrotropical Chyromyidae (excluding Gymnochiromyia Hendel) (Diptera: Schizophora), with the recognition of two subfamilies and the description of new genera, African Invertebrates 50 (2), pp. 321-321 : 334-335

Key to genera of Aphaniosominae

1 Scutal setulae in 2 acrs rows, sometimes irregular; incurved ihu seta/setula almost always present; sa and post ia setae absent; R 4+5 and M 1+2 always divergent towards wing apex ............................................................................ Aphaniosoma Becker

– Scutal setulae in 4–10 rows, not differentiated into acrs; incurved ihu seta/setula sometimes present; at least post ia present, even if short; R 4+5 and M 1+2 parallel or convergent towards wing apex ............................................................................. 2

2 Pre-alar seta present in depression behind transverse scutal suture; incurved ihu setula present; sa distinct; R 4+5 and M 1+2 parallel; head longer than high; eye margins on fr strongly convergent towards antennae; fr never inflated and not projecting above and in front of eye margin; 1–3 well-developed reclinate orb; pvt often absent, but if present, usually only one minute setula or entirely missing in some specimens of the same species; carina very indistinct, at most just visible immediately below lunule only; gena narrow, less than half height of eye ........................................... ....................................................................................... Paraphaniosoma gen. n.

– Pre-alar and sa setae absent, if sa present, not easily differentiated from adajacent setulae; ihu setula absent; R 4+5 and M 1+2 parallel or convergent towards wing apex; head higher than long; fr parallel-sided or nearly so, projecting anteriorly above antennae, appearing somewhat inflated; 0–4 short and usually inconspicuous orb; pvt present or absent, if present, always very short; carina distinct; gena broad, often much broader than half height of eye .......................................................... 3

3 Facial carina exceptionally well-developed, broadening below antennae; antennae lie in deep fossae; gena very broad, almost equal to height of eye or more; katepisternal seta absent; scutal setulae in 4–6 irregular rows between dc lines, short and sparse; other scutal setulae scanty, short to minute; wing veins R 4+5 and M 1+2 parallel up to apex of wing; hu crossvein thickened ........ Krifomyia gen. n.

– Facial carina narrow, less conspicuous, less widened below antennae; antennae, though appearing recessed, do not lie in deep fossae; gena about as broad as half height of eye or a little more; katepisternal seta present; acrs in 4–10 rows, more numerous and longer, other scutal setulae more numerous and longer; wing veins R 4+5 and M 1+2 convergent towards apex of wing; hu crossvein normal ................... ............................................................................................... Tethysimyia gen. n.