| abstract | Four new species of scutacarid mites belonging to the genus Archidispus are described from Japan under the names of A. conspicuus, A. foliatus, A. longicaudatus and A. papillosus. They are associated with ground beetles of the subtribe Stenolophina of the tribe Harpalini and distinguished from the known congeners mainly by the shape of certain modified setae on ventral plates and the conformation of apodemes, and in A. papillosus and A. longicaudatus, also by the shape of leg IV and by the extremely long, dorsal and caudal setae of hysterosoma, respectively. The female mites are found clining to the cervical membrane between head and prothorax of host insects. The male and immature stages are unknown. |