Actenoncus Chaudoir

Tian, Ming-Yi & Deuve, Thierry, 2009, A review of the genus Actenoncus Chaudoir (Coleoptera: Caraboidea: Orthogoniini), Zootaxa 2135, pp. 57-64 : 58-59

Key to species of Actenoncus Chaudoir

1 Eyes very large and very prominent, elytral apical inner angle with a small but evident denticle; elytral intervals without setiferous pore ( Actenoncus Chaudoir ) ........................................................................................................... 2

1’ Eyes small to moderate, and less prominent, elytral apical inner angle without an evident denticle, at least elytral interval 3 with setiferous pores ......................................................................................... other genera of Orthogoniini

2 Black, surface smooth, impunctate, more convex ............................................................................................. A. ater

2’ Brown to dark brown, more or less punctate, surface less convex ............................................................................. 3

3 Antennae comparatively stouter, only extending to base of elytra, pronotum impunctate ... A. wallacei , new species

3’ Antennae longer, extending at least to basal 1/4 of elytra, pronotum evidently punctate ........................................... 4

4 Right mandible without median tooth, elytral striae shallow, with large and isolated punctures; abdominal ventrite VII deeply emarginated at apical margin in male; aedeagus more slender ............................................... A. punctatus

4’ Right mandible with a distinct median tooth, elytral striae deep, punctures smaller and connected; abdominal ven- trite VII shallowly emarginated at apical margin......................................................................................... A. foersteri