Abstract A new species of the family Tydeidae from Iran, Tydeus shabestariensis sp. nov., is described from adult males and fe-males collected from soil in apple orchards. A key to species of Tydeusof Iran, based on females, is provided. The male of Neopronematus sepasgosariani(Tydeoidea: Iolinidae) is also described and illustrated for the first time.