Pterostichinae

Pterostichinae is a subfamily of ground beetles (family Carabidae). It belongs to the advanced harpaline assemblage, and if these are circumscribed sensu lato as a single subfamily, Pterostichinae are downranked to a tribe Pterostichini. However, as the former Pterostichitae supertribe of the Harpalinae as loosely circumscribed does seem to constitute a lineage rather distinct from Harpalus, its core group is here considered to be the present subfamily and the Harpalinae are defined more narrowly.

Pterostichinae
Image of the common Eurasian species Poecilus cupreus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Coleoptera
Family:	Carabidae
Subfamily:	Pterostichinae Bonelli, 1810

They are usually mid-sized and rather stout ground beetles. Coloration is typically dark and without conspicuous patterns, but often with a strong sheen like polished metal. They are widely distributed and inhabit a wide range of terrestrial habitats. Unlike the more basal ground beetles which only eat small animals, the Pterostichinae include a large proportion of omnivorous or even herbivorous taxa.