Oribatid mites (Acari, Oribatida) from dipterocarp and polydominant forests of the Dong Nai Culture and Nature Reserve (Southern Vietnam), with description of a new species of Lyroppia (Oppiidae)

An annotated checklist of oribatid mite taxa from dipterocarp and polydominant forests of the Dong Nai Culture and Nature Reserve (Southern Vietnam) is presented. It includes 59 species, 46 genera and 29 families. The species Cycloppia restata, Tegeozetes tunicatus and the genera Cycloppia, Tegeozetes are first records for Vietnam. Truncopes moderatus variabilis is recorded for the first time in the Oriental region. Lyroppia dongnaiensis n. sp. (Oppiidae) is described from soil of dipterocarp forests. The morphology of gnathosoma and legs are presented in detail for the first time for this genus. An identification key to all known species of Lyroppia is given.