Deleaster dichrous is a species of rove beetle (Staphylinidae) that is native to Europe, specifically the United Kingdom.

The head and abdomen of this species is a dark brown while the antennae, legs, and the rest of the body is orange.

[4][6] In Europe where they are natively found, Deleaster dichrous occurs in lowlands and on mountain bases.

They are found crawling through open grasslands, damp forests, and areas by the coast, where they are usually hidden by long grasses.

[6] Although this species can be seen during the daytime, it is wildly believed that Deleaster dichrous is nocturnal as they are commonly seen flying into light traps.