Terrestrial isopods of the genus Protracheoniscus (Isopoda: Oniscidea) in northern Iran with a description of two new species

In the present study, terrestrial isopods of the genus Protracheoniscus are investigated in northern Iran. Protracheoniscus ehsani Kashani, 2014 and P. Major (Dollfus, 1903) are found for the first time in the region. Two other species, P. Kiabii Kashani sp. Nov. And P. Golestanicus sp. Nov., are described as new. The diagnostic characters of the new species are illustrated and their distribution is presented on a map.