New and Little Known Species of Oribatid Mites of the Genera Arthrodamaeus and Fuscozetes (Arachnida: Acari: Oribatida) from Mongolia

Abstract

A new species of gymnodamaeid mite, Arthrodamaeus mongolicus sp. nov. from Eastern Mongolia, is described. In addition, two known species of cera-tozetid mites, Fuscozetes fuscipes (C.L.Koch, 1844) and F.tatricus Seniczak, 1993 are recorded for the first time in the fauna of Mongolia, and are re-described based on specimens from northern and eastern parts of the coun-try. Arthrodamaeus mongolicus sp. nov. is easily distinguishable from all known species of the genus by the well developed tubercles on the anterior part of the notogaster.