| abstract | We found two species of oribatid mites from Babeldaob Island of Palau Republic, which is an island country located in the western Pacific Ocean. Eurhynchoribates brevisensillatus sp. nov. is proposed from mosses growing in the forest, and a diagnostic key to adults of all known species of Eurhynchoribates is provided. Another species, Basilobelba foliata Hammer, 1982 is reported for the first time from Palau, which was known previously from island of Bali, Indonesia. Following the descriptions and comparisons, we discuss aspects of the diversity, distribution and habitat ecology of species belonging to each genus. |