rove beetle

any of a large family (Staphylinidae) of swiftly moving beetles with a long, slender body and very short elytra: they feed chiefly on decomposing organic matter

See rove beetle in American Heritage Dictionary 4

noun
Any of numerous beetles of the family Staphylinidae, often found in decaying matter and having slender bodies and short wing covers. Also called staphylinid.

Origin:

Origin: Possibly from rove1

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