Taxon classification Animalia Coleoptera Carabidae

Genus Polyderis Motschulsky, 1862

Type species.

Tachys brevicornis Chaudoir, 1846

Diagnosis.

Very small (<2 mm), mentum bearing paired foveae; pronotum convex, posterior angles squarely rounded or slightly obtuse; antennae short, submoniliform; i8 reduced, barely impressed, visible apically; ARG very short.

Distribution.

Old World and Australia, with a single species ( Polyderis laeva) in the Americas.