The subgenus Compsidia Mulsant, 1839 (Coleoptera, Cerambycidae, Lamiinae) in Korea is reviewed. Habitus andgenitalia of two species belong to the subgenus are described and illustrated. Larva and pupa of the known species, Saperda(Compsidia) populnea (Linné, 1758) are also described with its biological note.