(Fig. 6)
Townes et al. 1965: 105, nom. nov. pro Tryphon semirufus Uchida, 1930: 273 (♀, South Korea), nom. praeocc., non Cresson, 1864. Clausen 1932: 49, 57 (ex: Periclista sp.). Lee & Cha 1993: 20; 1996: 164. Kasparyan 1973: 192, 197 (key, description); 1982: 149 (Russia: Pimorskiy Terr., Sakhalin Prov. (Kunashir I.); key). Cha & Lee 1998: 203–210. Kasparyan & Tolkanitz 1999: 264, 266, 268 (key, fig., distribution). Lee & Cha 2000: 172.
Material examined. South Korea: 1 ♀, 1 ♂ (ZIN) “ Suigen, South Korea, V. 13. 1931, coll. K. Sato ”. Russia: 1 ♂ (ZIN) Primorskij Territory, Khasan. 1 ♂ (ZIN) Sakhalin Prov., Kunashir I.
Distribution. South Korea, Russia (south of Far East).