Diapriidae are the largest family in Diaprioidea with 2,087 species, 194 genera and three subfamilies that are distributed in all biogeographic regions. Most members of the family are primarily solitary or gregarious endoparasitoids of various dipteran larvae or pupae. Some species are also known to attack hymenopteran, coleopteran and lepidopteran species.
To date 18 species in total are known from South Korea. We present an updated checklist of 18 South Korean species of Diapriidae, with correcting some errors previously made. New Korean names for each species are also suggested herein.