New species records of systellognathan stoneflies (Plecoptera: Systellognatha) for the fauna of the Korean Peninsula

Abstract

Three species of stoneflies are reported for the first time from the Korean Peninsula: Pictetiella asiatica Zwick & Levanidova, 1971, Xanthoneuria unimaculata (Zhiltzova, 1979) and a new species of the genus Sweltsa Ricker, 1943. The widespread temperate Asian species, P. asiatica, represents the first record of the Transpacific genus Pictetiella Illies, 1966 from Korea. Xanthoneuria unimaculata confirms the presence of Xanthoneuria Uchida, 2011 in Korea. This genus was hitherto known only from Japan and the Russian Far East with a dubious record from Korea. The female of Sweltsa sp. is formally described but not named because male remained unknown. All the specimens were collected in North Korea by colleagues from the Hungarian Natural History Museum during the 1970’s and 1980’s. New Korean records of further ten species are also enumerated, with notes about some doubtful records. Distribution area of the genera Pictetiella and Xanthoneuria are detailed and depicted on maps.

Keywords

• Aquatic insects
• Pictetiella asiatica
• Xanthoneuria unimaculata
• Sweltsa sp.
• distribution
• North Korea