While performing a faunistic study on the superfamily Raphignathoidea of northwestern Iran, north parts east Azerbaijan and southwest west provinces during 2016-2018, total number 40 species in 13 genera belonging to were collected identified. Among them, four species: Stigmaeus luxtoni Wood, 1981; Ledermuelleriopsis sezeki Doğan, 2004; Eustigmaeus gulingensis Hu Chen, 1996 Molothrognathus kami...