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Faunal study was conducted in cotton fields of _loghan Plain, during
1996 resulting in the identification of 12 species, 12 genera and 8 families belonging to the Pycnonotic brachypyline oribatids. The following 6 families
together with their genera and species are new records for the acari fauna of Iran: Anderemaeidae: Cristeremaeus humeratus Balogh et Csiozar, 1963;
Eremellidae : Eremella ensifera Balogh et Mahunka, 1968; Eremobelbidae : Eremobelba sp. Berlese, 1908; licnodamaeidae: Licnodamawus granulatus
Balogh et Csiszar, 1963; Microzetidae: Berlezetes brazilozetoides Balogh et Mahunka, 1981; Autognetidae: Austrogneta sp. Balogh et Csiszar, 1963. Also
the following genera and species of Oppiidae: Rectoppia dispariseta (Hammer, 1958), Chavinia similis P. Balogh, 1984, Aeroppia adjacens Mahunka. 1985,
Austroppia magellanis (Hammer, 1962), Multioppia stellifera Hammer, 1961, 1\110 radiata Hammer, 1961. are new for the Moghan region. The family
oppiidae with 5 genera and 6 species were of the highest diversity while families Eremobelbidae and Autognetidae each with only one genus possessed
the lowest diversity.