A taxonomic study of two agathidiine genera and species in Korea is presented. The genera and two species [Cyrtoplastus seriepunctatus (Brisout, 1867) and Liodopria maculicollis Nakane, 1963] are reported for the first time in Korea. Descriptions and illustrations of diagnostic characters of these species, and key to the genera of the Agathidiini are provided.