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The species of Notanisus Walker (Hymenoptera: Pteromalidae: Cleonyminae) from Iran were revised. Four Palaearctic species are recognized: N. clavatus Bouček, N. oulmesiensis (Delucchi), N. vanharteni Gibson and N. versicolor Walker; including one species with macropterous male and the rests with macropterous females. Of which, N. oulmesiensis and N. versicolor are new records for Iran. The species are briefly described based on available materials, illustrated through macrophotography, and their distributions in Iran was mapped.

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The hymenopteran family Platygastridae is a large group of parasitic wasps. A survey was carried out on the subfamily Sceliotrachelinae (Hym.: Platygastridae) in East Azerbaijan and Fars provinces of Iran. The genus Fidobia Ashmead and three species, Allotropa conventus Maneval, Fidiobia hofferi Kozlov and Isolia mongolica (Kozlov) are newly recorded from Iran. Illustrations of the morphological characteristics and their geographical distribution are presented.

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 Three species of the genus Inostemma Haliday (Hymenoptera: Platygastridae), i.e. Inostemma discessus Szelenyi, I. koponeni Buhl and I. contariniae Szelenyi are reported as new records for the Iranian fauna. Inostemma discessus was reared for the first time from Ephedra gall midge, Ephedromyia debilopalpis Marikovskij (Dip.: Cecidomyiidae) on Ephedra sp. (Plantae: Ephedraceae) in the northwest Iran. The Iranian species of the genus Inostemma were listed.