Omalium gildenkovi (Coleoptera: Staphylinidae: Omaliinae), a new species from the central part of European Russia

Abstract

Omalium gildenkovi sp. n. (Omaliinae: Omaliini), a new species of rove beetle from Smolensk Region of Russia is described and illustrated. This species belongs to the rivulare group of the genus Omalium Gravenhorst, 1802, and based on several external and internal morphological features, it is similar to three European species: O. exiguum Gyllenhal, 1810, O. funebre Fauvel, 1871 and O. cerrutii Zanetti, 1985. Illustrations of some morphological details of two compared species are presented: the habitus and female abdominal segments of O. exiguum, as well as the aedeagus of O. exiguum and O. funebre. Specimens of O. gildenkovi sp. n. were collected using car net that demonstrates the effectiveness of this method in the collecting of Staphylinidae and other small beetles.