Superfamily STAPHYLINOIDEA (atlas of beetles of Russia)
Family Staphylinidae (atlas of beetles of Russia)
Subfamily Paederinae
Pseudomedon obsoletus (Nordmann, 1836)
Volgograd Prov., NW Kalach-on-Don 22,23.IV.1999 K.A. Grebennikov
Photo from site of Konstantin Grebennikov http://rove.front.ru