Family Staphylinidae Scientific name Philonthus cognatus | Order Coleoptera Genus Philonthus Rank Species | |
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Philonthus cognatus is a rove beetle. Adults are 8 to 10 mm long. They are mainly black in colour, although the elytra have a metallic sheen, and are profusely pitted. A distinctive feature of this species is that the underside of the first antennal segment is yellow, contrasting with the black upperside. It is a common species in Britain.
References
Philonthus cognatus Wikipedia(Text) CC BY-SA