Systematics and evolution of the genus Paraceroglyphus and related taxa (Acari: Acaridae) associated with fleas (Insecta: Siphonaptera).

Collections of fleas from terrestrial Sciuridae from New Mexico and Montana yielded 2 species of acarid mites: Acarus monopsyllus from Ceratophyllus ciliatus and Paraceroglyphus cynomydis n. sp. from 4 species of Oropsylla. The genera Acarus, Paraceroglyphus, and Trichopsyllopus form a clade distinct from other genera of flea-associated mites, with Paraceroglyphus the sister group of the other 2 genera. Paraceroglyphus cynomydis is the sister group of a clade comprising P. xenopsylla and possibly P. californicus, with P. meles as the nearest outgroup.