Elegia species deposited in the Hayk Mirzayans Insect Museum (HMIM) were examined and three species were identified. Elegia kharazii sp. nov. is described based on a single male and two females collected in Gilan and Golestan Provinces, Iran and compared with the externally similar European species E. similella (Zincken, 1818). Elegia saecula Kemal, Kzlda Kok, 2020 (syn. nov.) is considered as a junior synonym of Elegia iozona (Meyrick, 1937). Elegia atrifasciella Ragonot, 1887, collected in the north-west Iran (East Azarbaijan Province), is a new species for the fauna of Iran.