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Eupelmidae of Iran are revised based on collected material mainly from the northwest and accessible published data. This family in Iran includes 31 species in two subfamilies (Calosotinae and Eupelminae) and seven genera Anastatus Motschulsky, 1859 (four species), Arachnophaga Ashmead, 1896 (one species), Brasema Cameron, 1884 (one species), Calosota Curtis, 1836 (one species), Calymmochilus Masi, 1919 (one species), Eupelmus Dalman, 1820 (22 species) and Eusandalum Ratzeburg, 1852 (one species). The genus Calymmochilus and four species Calymmochilus dispar Bouček & Andriescu, 1967; Eupelmus pini Taylor, 1927; E. splendens Giraud, 1872 and E. vindex Erdös, 1955 are new records for Iran.