| abstract | A new species of oribatid mite, Asperemaeus striganovae is described, based on adult specimens collected from the epiphytic and edaphic lichens in a cool temperate larch forest, surrounding the Lake Houmlvsgoumll, Northern Mongolia. Asperemaeus striganovae n. sp. is a second member of the genus previously known only from the Russian Far East. By definition, the only known species, A. longipilus Behan-Pelletier, 1982 sensilli have relatively short stalk with clavate heads, posterior notogastral seta p2 situated very close to setae p1 and h1, and femora I-IV strongly hypertrichous. However, A. striganovae n. sp. shows relatively long sensillar stalk with less swollen club-shaped heads, the normal position of seta p2 that situated apart from setae p1 and h1, and the different number of setae on femora I-IV and trochanter IV, which distinguish it from the type species. Habitat characteristics as well as known ecology of the newly described species are discussed. |