New oribatid mites (Acari: Oribatei) of the genera Dissorhina and Ceratozetoides from Mongolia
1999 - Volume: 40 Issue: 1 pages: 93-100
The oribatid mites Dissorhina bulganensis sp. nov. and Ceratozetoides aokii sp. nov. are described from Mongolia. D. bulganensis sp. nov, is distinguished from the other known congeneric species in having a pair of heavily pigmented longitudinal ridges anteriorly of lamellar costulae between lamellar setae, two pairs of strongly sclerotized ridges on the interlamellar region and a pair of weakly sclerotized ridges along the lateral margins of the prodorsum. C. aokii sp, nov. differs from closely related species in the well-developed and relatively wide head of the sensillus, the insertions of the interlamellar setae, which are located under the anterior margin of notogaster, and the relatively narrow lamellae.
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