Contribution to knowledge of the oribatid mite genus Idiozetes (Acari, Oribatida, Idiozetidae), with description of a new sexually dimorphic species from Vietnam

A new species of Idiozetes (Oribatida, Idiozetidae)—I. schusteri sp. n.—is described, based on adults (males and females) collected from litter, tree branches and tree bark in southern Vietnam. This species is characterized by the following morphological traits: sexually dimorphic males with two large tubercles posteriorly on the notogaster; tutoria fused dorsally on prodorsum forming bidentate structure; nine pairs of notogastral setae (c, la, lm, h1–h3, p1–p3); five pairs of notogastral saccules; eight pairs of genital setae; monodactylous. The generic diagnosis is revised. An identification key, distribution and habitats to the known representatives of Idiozetes are provided.