The genusNogiperlaOkamoto is placed in synonymy withCryptoperlaNeedham.NeopeltoperlaKohno, 1946 is invalid and the species that have been placed in it(chiangiBanks,fraternaBanks,ishigakiensisKawai) are transferred toCryptoperla. Cryptoperla japonica(Okamoto) from Japan,C. formosana(Okamoto) from Taiwan andYoraperla uenoi(Kohno) from Japan are redescribed as eggs, nymphs and adults with keys to the Japanese (except Ryukyu Is.) species of Peltoperlidae.