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The subfamily Cremastinae Förster, 1869 (Hymenoptera: Ichneumonidae) was studied in Fars and Hormozgan provinces (southern Iran). The specimens were collected using Malaise traps and sweeping nets. Nine species were identified of which two species including Temelucha afghana Šedivý, 1968 and Temelucha confluens (Gravenhorst, 1829) are new records for the fauna of Iran. With result of this study, the number of Cremastinae species known from Iran has increased to 24 species in six genera. An identification key to Iranian Cremastinae is provided, as well as a morphological diagnosis for the newly recorded species.