A Revison of the Genus Demotina (Coleoptera, Chrysomelidae) from Japan, the Ryukyus, Taiwan and Korea, II

This is the latter part of the revisional study of the genus Demotina from Japan, the Ryukyus, Taiwan and Korea. Demotina incostata TAKIZAWA is raised to the species rank. Four species, viz., D. sasakawai NAKANE et KIMOTO, D. bipunctata JACOBY, D. decoratella CHUJO and D. elegans CHUJO et SHIROZU, are resurrected from the synonymic list. Demotina inornata NAKANE is synonymized with D. bipunctata JACOBY. A key to the 15 species including 4 members newly described in the former part of the study is presented. Several new records of distribution are also given. Males of D. modesta BALY are first discovered from Korea. The life history pattern, oviposition habit and reproduction mode of the species are also sketched.