Paraleuctra cercia (Okamoto, 1922)

Leuctra cercia Okamoto, 1922 — Okamoto 1922: 37. (original description of male and female).

Paraleuctra cercia (Okamoto, 1922) — Kawai 1967: 36. (comb. n.; redescription of male and female); Zhiltzova 1976: 60. (redescription of male and female; first record from Russia); Kim et al. 1998: 421. (first record from South Korea); Shimizu 2000: 291. (redescription of male and female; synonymy of L. forficularis and L. higashiyamae); Zhiltzova 2003: 492. (monograph); Zwick 2010: 89. (complementary description, further records from South Korea).

Leuctra forficularis Okamoto, 1922 — Okamoto 1922: 39. (original description of male and female).

Paraleuctra forficularis (Okamoto, 1922) — Kawai 1976: 7. (comb. n.).

Leuctra higashiyamae Kohno, 1965 — Kohno 1965: 41. (original description of male).

New material. SOUTH KOREA: GW, Wonju-si, Chiaksan (Mt.), Sillim-myeon, upper section of a forest brook towards Sangwon-sa, 930m, N37°18.071' E128°03.396', 14.v.2016, leg. J.M. Hwang, D. Murányi et al.: 1♀ (HNHM) . lower section of the same brook, 850m, N37°18.047' E128°03.535', same date and collectors: 1♀ (HNHM). GW, Wonju-si, Sillim-myeon, Chiaksan (Mt.), 20.v.2003, leg. J.M. Hwang: 3♀ (KUEM) . CN, Gongjusi, Gyeryong-myeon, Eunseon falls, N: 37°58'36.4" E: 127°12'35.0", 13.v.2015, leg. J.M. Hwang: 1♀ (KUEM) . GB, Yeongju-si, Punggi-eup, Gyochon-ri, Birosa, Sobaeksan (Mt.), 31.v.2015, leg. J.C. Jung: 15♂ 13♀ (KUEM) . GB, Cheongdo-gun, Unmun-myeon, Munsuseonwon, Unmunsan (Mt.), N: 35°38'32" E: 128°57'50", 8–30.iv.2016, leg. J.W.Lee: 3♂ (KUEM) .

Remarks. This widespread and common species was previously known only from South Korea of the Korean Peninsula (Fig. 29).