Agyrtidae or primitive carrion beetles are a small family of polyphagan beetles They are found in mostly temperate areas of the northern hemisphere and in New Zealand. They feed on decaying organic material.
Agyrtidae are small or middle-sized beetles (length 4-14 mm). They have usually oval body, but the Pterolomatinae are superficially similar to ground beetles. Abdomen is with five visible ventral sclerites, procoxal cavities internally open. Hindwings have anal lobe but no radial hinge.
Currently, about 60 species are known. The family is divided into three subfamilies:
- M.Hansen. Phylogeny and classification of the staphyliniform beetle families (Coleoptera). Biologiske Skrifter 48, Copenhagen, 1997
- Lawrence,J.F. & Newton,A.F., Jr. Evolution and classification of beetles. Annu. Rev. of Ecology and Systematics 13, 1982.
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