Elampus bidens ($Fddot{o}rster$) is reported from Korea. The genus and species are new to Korea. This species is easily distinguished by a pair of processes on apical margin of metasomal tergum III. A checklist of the 45 current valid Korean species placed in the family Chrysididae is presented. A key to subfamilies, tribes, genera of Korean Chrysididae is also provided.