The genus Toxares (Braconidae: Aphidiinae) is reported for the first time in Korea. Toxares deltiger (Haliday, 1833) is found as new to Korea. It has a wide host range causing it to be useful as a natural enemy for 31 aphid species within Aphididae. Diagnosis, host information, and illustrations are included. Keywords: Braconidae, Hymenoptera, Korea, new record, Toxares