From a large number of insects collected by the athours, in Korea. various species of the Laboulbeniales have been obtained Seven species in four genera of these fungi which were found on several beetles of the. families Carabidae, Endomychidae, Staphylinidae are reported as new to Korea. They are as follows: Dichomyces biformis (Host: Philonthus micanticolis), D. furcifer (Host: Philonthus sp.), Enathromyces indicus (Host: Pheropsophus jessoensis), Laboulbenia exigus (Host: Chlaenius varricornis), L. flagellata (Host: Anisodactylus punctatipennis), L. vularis (Host: Bembidion oxyglimma, B. thermarum) and Rickia ancylopi (Ancylopus) melanocephalus). All the specimens studied are deposited in the Biological Laboratory of Educational College, Cho Sun University.