Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 65. (Budapest 1973)
Zwick, P.: Plecoptera from Korea
but is strikingly different in tne form of the cerci. The other species of Rhopalopsole differ considerably in the length of the tergal spine, the shape of the cerci, the epiproct, or by the presence of big appendages in the paraprocts. CHLOROPERLIDAE Alloperla rostellata (KLAPÁLEK) 1923, Isopteryx rostellata KLAPÁLEK, Ann. Soc. Ent. Belg., 63: 29. 1 0 *: Korea, Prov. Kanwon, Diamond Range, Man-mul san, 30. V. 1970 (No. 68). This species has been redescribed only recently (ZWICK — LEVANIDOVA— ZHILTZOVA 1971) and is widely distributed in Asia, from Irkutsk to Kamchatka. There had been no previous records from Korea. Alloperla pieta sp. n. (Figs. 27-28) Holotype Ç : Korea, Prov. Kanwon, Diamond Range, Man-mul san, 30. V. 1970 (No. 68). Length 10 mm; body 8 mm, fore-wing 8.5 mm, long, expanse 18 mm. General colour hght yellow, with prominent black pattern on dorsal side. Head with large central patch and a smaller one on frontoclypeus. Pronotum with wide black median stripe sharply contrasting with hght lateral areas. Pterothoracic segments brownish along middle, a central angular patch and the so-called U-mark dark brown; postnotum with three lighter areas. Abdomen with a wide dark median band extending over tergites 1-7, surrounded by more diffuse brownish pigment. On segments 1-5 this extends laterally to dark lateral stripe (on segments 1-7). Tergites 8-10 brownish along their posterior margins. Sternites light in colour, only the short sharply pointed subgenital plate and a brown patch anterior to it (visible inside body through body wall) dark. Appendages : antennae with basal joint hght brown, subsequent joints including 6th or 7th yellow, remainder black. Legs yellow, with brown dorsal stripe on femora. Cerci pale, only 7 segments, tips possibly broken off. Wings with clear pale membrane, some veins brown, others yellow as in A. mediata (NAVAS). In forewing anterior and exterior margins and tips of 8c, R, Rs, M and Cu brown; M and Cu brown almost to their bases, Cui darker than M. Posterior portion of wing including Gu% pale, except for a dark spot between A\ and forked Ai outside crossvein connecting the two. In hind wing, only exterior wing-margin and tips of R, Rs and M shghtly infuscate. Differential diagnosis — By its colouration, A. picta sp. n. bears some likeness to species from Japan ; the latter are all representatives of Siveltsa, while the genital characters of A. picta show that it belongs to Alloperla (for revised diagnoses of both genera see ZWICK 1971, 1973a). No similar species has been described from continental Asia. Triznaka{}.) sp. 3 $ $ ; Korea, Prov. Kanwon, Diamond Range, Hotel Go-song, 29. V. 1970 (Nos. 52,
