Superfamily of Rhaphignathoidea comprises of 11 families distributed in the world, and so far only 7 families have been reported from Iran, namely Stigmaeiidae, Raphignathidae, Cryptognathidae, Camerobiidae, Eupalopsellidae, Barbutidae and Caligonellidae. Members of these families are predators and sometimes have important role in biological control of pests. They are mainly associated with a variety of habitats such as plant aerial parts, under the skin of the trees, on weeds and soil. In the meantime Stigmaeiidae and Raphignathidae are very usual and important families of Raphignathoidea. Before this study, about 40 species of the genus Stimaeus Koch, 1836 and 19 species of Raphignatus Duges, 1834 have been reported from various part of the country. So, in order to identify the fauna of these mites in the Arasbaran forests (Northeast Azerbaijan province), sampling was performed during the growing season in 2017. Mites were extracted using Berlese-Tullgren funnel and then cleared in lactophenol fluid and the slides were made using Hoyer’s medium. In this study, 10 species belonging to tow genera of these families were identified. Among them, three species were new records for mites fauna of Iran and one species of the genus Stigmaeus is new species of which marked with (*) and (**) respectively. The entire material collected are deposited in university of Maragheh.
Stigmaeiidae:
Stigmaeus glypticus* Summers, 1962; S. angustus* Dönel & Doğan, 2011; Stigmaeus sp. nov. **
Raphignathidae:
Raphignathus hecmatanaensis Khanjani & Ueckermann, 2002; R. gracilis (Rack, 1962); R. giselae Meyer & Ueckermann, 1989; R. zhaoi Hu, Jing & Liang, 1995; R. orientalis* Fan & Li, 1993; R. azarshahriensis Ahaniazad & Bagheri, 2013; R. khorramabadensis Bagheri, 2013