58 species are recorded from Korea based on re-examination of the previously reported material and study of a new one. Six new species (Rutidosoma koreanum Korotyaev et Hong, sp. n., Calosirus kwoni Korotyaev et Hong, sp. n., Mogulones kwoni Korotyaev et Hong, sp. n., Augustinus koreanus Korotyaev et Hong, sp. n., Ceutorhynchoides koreanus Korotyaev et Hong, sp. n. and Mecysmoderes koreanus Korotyaev et Hong, sp. n.) are described from Korea, and 5 species [Pelenomus waltoni (Boheman, 1843), Ceutorhynchus scapu/aris Gyllenhal, 1837, Hadroplontus ancora (Roelofs, 1875), Thamiocolus kerzhneri Korotyaev, 1980 and Glocianus fennicus (Faust, 1895)] are recorded from Korea for the first time. The new subgenera Heorutidosoma Korotyaev et Hong, subgen. n. and Coelioderes Korotyaev, subgen. n. are erected in Rutidosoma and Mecysmoderes, respectively. The following new species are described from the neighbouring countries： Ceutorhynchus japonicus Korotyaev, sp. n. from Japan (Honshu), very closely related to C. cochleariae Gyllenhal; Calosirus oxystoma Korotyaev, sp. n. from China, very similar to C. kwoni Korotyaev et Hong, sp. n.; Microplontus amurensis Korotyaev, sp. n. from Khabarovsk Territory of Russia; Mecysmoderes nipponicus Korotyaev, sp. n. from Japan (Honshu), very closely related to M koreanus Korotyaev et Hong, sp. n. New host plants are recorded for several species; the host of Phytobiomorphus variegatus (Hustache) is Lychnis sp. (Caryophyllaceae).