抄録
Type specimens of Choragus and Melanopsacus described by Johraku (1953), Morimoto (1978), Senoh (1984) and Shibata (1984, 1987) are examined. The following taxonomic treatments are conducted: C. konishii Shibata, 1987 is synonymized with C. malus Johraku, 1953, and M. inaequalis Shibata, 1984 is synonymized with M. makiharai Morimoto, 1978. The photographs of holotypes of C. malus, C. konishii, C. velutinus, M. elongatus, M. inaequalis, and M. punctatus are shown for the first time.