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 , h 1 - h 3 , p 1 - p 3 ); 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.