Cephenniini

Jałoszyński, Paweł, 2010, Notes on identity of Cephennomicrus sumatranus (Franz) (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 2517, pp. 25-32 : 28

Key to Old World genera of the Cephenniini

1 Antennae 10-segmented, with terminal antennomere forming large oval club .................. Trurlia Jałoszyński, 2009a

- Antennae 11-segmented, gradually thickened or with separated club.......................................................................... 2

2 Basisternum much longer than procoxal cavities ........................................................................... Etelea Csiki, 1909

- Basisternum shorter than procoxal cavities ................................................................................................................. 3

3 Internal margins of procoxae in ventral view hidden under expanded laterally ventral surface of prosternal process. ...................................................................................................................................................................................... 4

- Internal margins of procoxae visible in ventral view, prosternal process missing or its ventral surface not expanded laterally ......................................................................................................................................................................... 5

4 Pronotum with sublateral carinae ................................................................................ Cephennula Jałoszynski, 2008b

- Pronotum without sublateral carinae ............................................................................................. Lathomicrus gen. n.

5 Pronotum without foveae.............................................................................................................................................. 6

- Pronotum with ante-basal foveae.................................................................................................................................. 7

6 Antennae with indistinct 3-segmented club......................................................... Cephennium Müller & Kunze, 1822

- Antennae with distinct 2-segmented club ............................................................. Nanophthalmus Motschulsky, 1851

7 Basal elytral foveae, if present, never filled with setae; pronotum usually with four foveae ........................................ ....................................................................................................................................... Cephennomicrus Reitter, 1907

- Basal elytral foveae filled with short and dense setae; pronotum always with two foveae.......................................... 8

8 Prosternal process very short, not protruding ventrally beyond procoxae ................... Hlavaciellus Jałoszyński, 2006

- Prosternal process long, protruding ventrally beyond procoxae ........................................ Cephennodes Reitter, 1884