Larvae and pupae of five species of Monochamus Dejean, 1821 (Coleoptera, Cerambycidae, Lamiinae) are described.andillustrated: Monochamus alternatus (Hope, 1843), Monochamus guttulatus Gressitt, 1951, Monochamus saltuarius Gebler,1830, Monochamus subfasciatus (Bates, 1873), Monochamus urussovii (Fischer-Waldheim, 1806). Host plant, feeding habitof larvae and their economic importance are also summarized.

• Seunghyun Lee(Laboratory of Insect Biosystematics, Department of Agricultural Biotechnology, Seoul National University, Research Institute of Agriculture and Life Sciences, Seoul National University)
• Seunghwan Lee(Laboratory of Insect Biosystematics, Department of Agricultural Biotechnology, Seoul National University, Research Institute of Agriculture and Life Sciences, Seoul National University)