Taxonomy of Homoeusa Kraatz, 1856 (Coleoptera, Staphylinidae) from the East Palearctic: I. Homoeusarufescens (Sharp, 1874) and a new allied species.

There is insufficient information to identify most species of the myrmecophilous rove beetle genus Homoeusa . In this paper, after examining the type material, Homoeusarufescens (Sharp, 1874) is redescribed in detail and its new allied species Homoeusaovata sp. nov. is described. We also observed the behavior of these two species in the field; the behavior was similar to that reported for H.acuminata (Märkel, 1842). A checklist of Homoeusa from the Palearctic and Nearctic is also provided.