1. Marginal vein long, at least 3.5× length of postmarginal vein (A); postgenal bridge closed (pgb), postgenae separated only by narrow strip of postoral microtrichia (pom) (B); gastral tergites often with transverse rows of foveae and crenulations (C) …3 ORMYRINAE
- Marginal vein shorter, at most 2.5× length of postmarginal vein (a); postgenal bridge open, postgenae separated by lower tentorial bridge (ltb) (b); gastral tergites rarely with weak crenulations present laterally (c) …2
2. Tarsal claws with large basal projection that is cleft (A); uncus small, hardly protruding (B); clypeal margin strongly protruding (C) …5 ASPARAGOBIINAE
- Tarsal claws simple, with rudimentary basal hump (a); uncus long, half-length of stigmal length (b); clypeal margin weakly protruding (c) …HEMADINAE (Hemadas)
3. Gastral tergites, except the first, shallowly and evenly punctulate-reticulate (A, B) …4
- Gastral tergites, except the first, strongly sculptured, often with transverse rows of larger pits on the tergites and strong setation (a, b) ...Ormyrus
4. Eyes very large, hence malar space very short (A); face mainly rugose-striate (B); notauli deep in posterior part (C); antennal formula 11173 (B); fore wing with diffuse median infumation … Eubeckerella
- Eyes normal, malar space much longer (a); face mainly reticulate (a, b); notauli shallow to almost indistinct at least in posterior part (c); antennal formula 11263 (b); fore wing hyaline … Ouma
5. Antennal formula 11174 (A); multiporous plate sensilla small and numerous, present in multiple (up to 6) interspersed rows on each flagellomere (B); stigmal vein parallel to postmarginal vein, thickened, cleaver-shaped (C) ...Asparagobius
- Antennal formula 11264 (a); multiporous plate sensilla large, present in 1 to 2 rows on each flagellomere (b); stigmal vein at about an 80-degree angle to postmarginal, club-shaped (c) …Halleriaphagus
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