Development and Morphology of Unduloribates undulatus (Berlese, 1914) (Acari: Oribatida) and some Remarks on the Unduloribatidae

摘要

Unduloribates undulatus, a moss-dwelling species living in alpine habitats of the European Alps, the Sudeten mountain range (Giant Mountains), and the Carpathians, is redescribed in detail and information on the ontogenetic development is given. The species-specific characteristics are ten pairs of long and spiniform notogastral setae, long and spinose interlamellar setae, a slender, longish lenticulus and the juveniles show a plicate integument, a lateral carinate opisthosomal dorsum, uniform short spiniform notogastral setae, keel-like lamellae and 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 of Unduloribatidae, is a junior synonym of Unduloribates, as the described characters of its only species, K. foliatus, well fit the known range of traits in the latter genus.