Abstract
Predatory soil mites of the family Rhagidiidae (Acari Prostigmata) were collected from tropical rain forest in Nam Cat Tien National Park, South Vietnam. The new taxa Foveacheles (Achaetorhagidia) tropica n. subgen., n. sp.; F. (A.) namcatiensis n. sp.; Rhagidia (Dongnaia) edaphica n. subgen., n. sp. are described and Robustocheles (R.) mucronata (Willmann 1936) is reported and its occurrence in SE Asia discussed.