Abstract
Two new species of the genus Schizotetranychus were described. They have formerly known as infra-specific forms of Schizotetranychus celarius (BANKS). Schizotetranychus miscanthi SAITO, n. sp. was collected from a perennial grass, Miscanthus sinensis ANDERSS, in Kyushu, Shikoku and Okinawa. It differs from S. celarius in the relative lengths of several dorsal setae and their arrangements. Schizotetranychus longus SAITO, n. sp. was collected from a dwarf bamboo, Sasa senanensis (FRANCH. et SAV.) in Hokkaido and Shikoku. It differes from S. celarius in the relative lengths of several dorsal setae, and from S. miscanthi n. sp. in the form of the empodial claws and in the position of the dorsocentral setae (C1).
