A new Argentinian species of Bembidion (Chilioperyphus) (Coleoptera: Carabidae: Bembidiini) with accessory setae

Abstract

The new species, Bembidion (Chilioperyphus) cuyanus (type locality ARGENTINA, San Luis, Quebrada Lopez, 7 km SE San Francisco) is described, based on external structural features (extra setae in the supraorbital region, pronotum, elytral margin and intervals 3, 5 and 7) and those of the male genitalia (details of the endophallic flagellum). Line drawings illustrate diagnostic features and a key distinguishes among the species of subgenus Chilioperyphus Jeannel. This species lives along the border of rivers and creeks in the arid region of western Argentina.