ORIBATID MITES OF DONG NAI BIOSPHERE RESERVE (= CAT TIEN NATIONAL PARK) OF SOUTHERN VIETNAM, WITH DESCRIPTION OF A NEW SPECIES OF PERGALUMNA (ACARI, ORIBATIDA, GALUMNIDAE)

An annotated checklist of oribatid mite taxa in Dong Nai Biosphere Reserve (= Cat Tien National Park) with distribu- tions is provided. We have registered 121 species, 84 genera and 45 families, of which 40 species, 27 genera, 12 families were found for the first time in Vietnam, and of which 30 species and one genus were described as are new. A new species of the genus Pergalumna, Pergalumna paraelongata sp. n., is described.