DEVELOPMENT AND MORPHOLOGYOF UNDULORIBATES UNDULATUS (BERLESE, 1914)(ACARI: ORIBATIDA) AND SOME REMARKSON THE UNDULORIBATIDAE

摘要

Unduloribates undulatus, a moss-dwelling species living in alpine habitats of the EuropeanAlps, the Sudeten mountain range (Giant Mountains), and the Carpathians, is redescribed indetail and information on the ontogenetic development is given. The species-specific charac-teristics are ten pairs of long and spiniform notogastral setae, long and spinose interlamellarsetae, a slender, longish lenticulus and the juveniles show a plicate integument, a lateralcarinate opisthosomal dorsum, uniform short spiniform notogastral setae, keel-like lamellaeand femoral porose areas. The comparison with U. brevisetosus, U. dianae, U. hebes and U.medusa showed clear separation of all species. Koreoribates, the second genus ofUnduloribatidae, is a junior synonym of Unduloribates, as the described characters of its onlyspecies, K. foliatus, well fit the known range of traits in the latter genus.