The Scutacarid Mites of Japan : XI. Four New Archidispus Associated with Ground Beetles of the Tribes Nebriini, Bembidiini and Patrobini

Four new species of the genus Archidispus are described from Japan under the names of A. sugiyamai, A. cnemidoti, A. diploi and A. nobukoae. They are known only from the females and found attached to the cervical membrane between head and prothorax or intersegmental membrane between pro- and mesothorax of ground beetles belonging to the tribes Nebriini, Bembidiini and Patrobini. A. sugiyamai and A. cnemidoti bear no direct relationship with any of the known congeners; A. diploi and A. nobukoae are somewhat similar to A. crassiradix KUROSA and its related species (KUROSA, 1989).