| abstract | The present report was based on the materials, which were found during the taxonomical and ecological investigations of oribatid mites in Mongolia. Three known species, Trichoribates trimaculatus (C.L. Koch, 1836), T. punctatus Shaldybina, 1971, and Diapterobates oblongus (C.L. Koch, 1879), are redescribed, and four new species Trichoribates rotundicuspidatus, T. latirostratus, Melanozetes exobothridialis, and Diapterobates bogduulensis are described. |