The species of Eurytomidae family and their trophic associations with different plants were studied in two provinces of Iran (Hamedan and Lorestan). Seed-feeding Eurytomid wasps were reared from different plant seeds collected during 2008-2012. Totally 600 specimens of Eurytomid wasps were collected. Among them, 6 Eurytomid wasp species were identified as a new species for Iranian fauna and three species were described as a new species for science. Among 26 identified Eurytomid wasps, 18 species belong to Bruchophagus, 6 species to Systole and 2 species to Eurytoma. Moreover, 66 plant species are firstly indicated here as host plants for Eurytomidae species. Host plants that reported in this study belonging to Fabaceae, Apiaceae, and Lamiaceae.