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This paper provides data on distribution of 13 chalcid wasp species (Hymenoptera: Chalcidoidea: Chalcididae) belonging to 9 genera and three subfamilies Chalcidinae, Dirhininae and Haltichellinae from Hormozgan province, southern Iran. All collected species are new records for the province. Two species Dirhinus excavatus Dalman, 1818 and Hockeria bifasciata Walker, 1834 are recorded from Iran for the first time. In the present study, D. excavatus is a new species record for the Palaearctic region. An updated list of all known species of Chalcididae from Iran is also included.

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Proconura persica Delvare, 2011 (Hymenoptera: Chalcididae) was originally described from Iran. Type materials of this species were include just female specimens. Recently we collected a population of this species from Shiraz in the south of Iran comprising males and females. The previously unknown male of P. persica is described for the first time and diagnostic characters are illustrated to differentiate this species from related species of the genus.

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Baryscapus evonymellae (Bouché, 1834) (Hymenoptera, Eulophidae) was rediscovered on Leucoma wiltshirei Collenette, 1938 (Lepidoptera, Erebidae) attacked by different parasitoids. This species had already been reported under different names; therefore, its inaccurate identifications were corrected. It was reared as a larval and pupal hyperparasitoid of two important primary parasitoids of L. wiltshirei including Brachymeria tibialis Steffan, 1958 (Hymenoptera, Chalcididae), and Dolichogenidea persica Abdoli, Mohammadi, Sedaratian-Jahromi & Farahani, 2023 (Hymenoptera, Braconidae). The last parasitoid-hyperparasitoid association is new. Its morphological characters were illustrated and its biological data and main characteristics were discussed.