SPHAERONINA

Herman, Lee, 2023, Generic Revisions Of The Scopaeina And The Sphaeronina (Coleoptera: Staphylinidae: Paederinae: Lathrobiini), Bulletin of the American Museum of Natural History 2023 (460), pp. 1-195 : 160-161

KEY TO GENERA OF THE SPHAERONINA

1. Metatibia with one apical comb....................2

– Metatibia with two apical combs, one on each side............................................................3

2(1)Pronotum with postprocoxal lobe nearly vertical; profurcasternum apically tapered and widely separated from prohypomeron (as in fig. 393); head without basal extension (see figs. 362, 364); Tunisia............ Coecoscopaeus

– Pronotum with postprocoxal lobe strongly bent medially and lying or nearly lying on surface of profurcasternum; profurcasternum expanded laterally and touching prohypomeron (fig. 355); head (of most species) with rectangulate basal extension (figs. 362, 364); Mexico and Cuba south to Argentina.................................... Sphaeronum

3(1)Species from southern Africa or Madagascar; anterior margin of labrum with large to small denticles (fig. 395; Janák, 2013: fig. 21)................................ Typhloleleupius

– Species from Australia; labrum edentate and deeply emarginate (fig. 384; Scheerpeltz, 1935: fig. 4a)............................... Tripectenopus