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.
| Philonthus cognatus | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Coleoptera |
| Family: | Staphylinidae |
| Genus: | Philonthus |
| Species: | P. cognatus
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| Binomial name | |
| Philonthus cognatus (Stephens, 1832)
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Wikispecies has information related to Philonthus cognatus.
References
edit- Joy, Norman (1932). A Practical Handbook of British Beetles (volume 1 page 119, under the name Philonthus fuscipennis).
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