Asialassus

Nabozhenko, Maxim & Ando, Kiyoshi, 2018, Subtribal, Generic And Subgeneric Composition Of Darkling Beetles Of The Tribe Helopini (Coleoptera: Tenebrionidae) In The Eastern Palaearctic Region, Acta Zoologica Academiae Scientiarum Hungaricae 64 (4), pp. 277-327 : 320

Key to the species of the genus Asialassus based on structures of male

1. Protibiae strongly flattened and bent down apically, without additional processes or teeth ( Fig. 18G). Mesotibiae with strong and large 10–12 teeth on inner margin ( Fig. 18A) A. cordicollis

– Protibiae ladle-shaped, bent down at apex, with additional one or two teeth or tooth-shaped process apically ( Figs 21C,D, 22E,F, 23D, 24B,C, 25D,E, 26B,C). Mesotibiae without teeth or with several very small teeth on inner side near apex 2

2. Protibiae with two acute distinct teeth before apex ( Figs 21C,D, 22E,F, 23D) A. kimurai

– Protibiae with a rounded or angulate inner process on inner margin ( Figs 24B,C, 25S,E, 26D,C) 3

3. Mesotibiae almost straight (not thickened at middle, with several small acute teeth on inner margin near apex) ( Fig. 25F) A. todai labels of the holotype