Alloperla tiunovae Teslenko, 2009 and Haploperla maritima Zhiltzova & Levanidova, 1978, hitherto known only from the Russian Far East, are reported from South Korea. The male of A. picta Zwick, 1973, previously known only from the female holotype collected in North Korea, was described based on numerous specimens collected in South Korea. The species previously reported as Triznaka (?) sp. sensu Zwick, 1973 proved to be A. tiunovae. The generic assignment of both A. picta and A. tiunovae point on certain problems of generic diagnosis of Alloperla Banks and Sweltsa Ricker, and call for a comparative generic review of Alloperlini Surdick, which should focus on Asian taxa.