Beaver beetle

Beaver beetle
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Coleoptera
Suborder: Polyphaga
Infraorder: Staphyliniformia
Superfamily: Staphylinoidea
Family: Leiodidae
Subfamily: Platypsyllinae
Genus: Platypsyllus
Ritsema, 1869
Species:
P. castoris
Binomial name
Platypsyllus castoris
Ritsema, 1869
Synonyms

Platypsyllus castorinus Westwood, 1869

The beaver beetle (Platypsyllus castoris) is an ectoparasitic beetle that is only found on its host species, beavers, and the sole member of the genus Platypsyllus. It is flattened and eyeless, resembling a flea or tick. It used to be placed in a separate family called Leptinidae, but is now placed in the family Leiodidae, in the subfamily Platypsyllinae.