The Iranian species of the genus Holopyga (Hymenoptera: Chrysididae) were investigated. Specimens were collected during four years of field research between 2010 and 2013, in northern and southern provinces of Iran. Twenty one species and subspecies were recognized, of which four species and one subspecies were recorded for the first time from Iran: Holopyga beaumonti Balthasar, 1953; H. fascialis Linsenmaier, 1959; H. ignicollis Dahlbom, 1854; H. inflammata inflammata (Förster, 1853) and H.

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... inei Chevrier, 1862. Geographical distribution of all species and morphological diagnostic characteristics of the newly recorded species are given. The number of Holopyga species and subspecies in Iran is now raised to 21.