Paraleuctra cercia
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Leuctridae
Paraleuctra
Paraleuctra cercia

description: <i>Paraleuctra cercia</i> (Okamoto, 1922) (Figs. 42, 43) <i>Leuctra cercia</i> Okamoto, 1922:37. Syntypes from JAPAN, Sapporo, Shiribeshi, and Iburi provinces in coll. Okamoto not located (Shimizu 2000). <b>Material examined.</b> REPUBLIC OF KOREA: Gangwondo, Pyeongchang, Yongpyeong Myeon, Nodong-li, Nodong Valley, Alt. 900 m, 5.- 14.6. 2008, 37°42.08. N' 128°28.89'E, 3 Malaise traps in shade at small stream, 1&amp;female;. Chungbuk, Sangchon-Myeon, Dungeon-li near Doma Pass, Alt. 750 m, 2.-26. V. 2006, 2 Malaise traps in forest on small stream, 15&amp;female;. <b>Notes.</b> The identification of the present material is not without doubt. Descriptions and illustrations (Okamoto 1922, Zhiltzova 1974, 2003, Shimizu 2000) are of a female with basally smooth subgenital plate. Conspicuous pilosity occurs only on the caudal lobes. The female from Nodong Valley listed above agrees with this description. The Korean specimens from near Doma Pass differ by a setose crest which in lateral view rises medially from the anterior third of S8, resembling a cone (Figs. 30, 31). Its strong setae are strikingly apparent in lateral view. Initially, these crested specimens were thought to represent a new species. However, V. Teslenko (in litt.) kindly translated the key passage to females of this group (Zhiltzova 2003) which reads: -... Lateral margins of lobes of subgenital female plate truncated obliquely, basal part of subgenital plate transfers to distal part without distinct projection................................ <i>araleuctra zapekinae</i> -... Lateral margins of lobes of subgenital female plate are parallel, basal part of subgenital plate narrow, separated from wide distal part by distinct projection......................... <i>Paraleuctra cercia</i> A sample I took near Sidima, Khabarovski Territory, Russian Far East, in June 1998 includes the nicely distinct males of both species. Of the 6 females, 4 have a smooth subgenital plate as published in the literature. However. one female resembles the Korean specimens (Figs. 42-43) and the last specimen is intermediate.
description: Published as part of <i>Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, pp. 75-97 in Illiesia 6 (9)</i> on pages 89-90, DOI: 10.5281/zenodo.4759703
description: {"references": ["Okamoto, H. 1922. Zweiter Beitrag zur Kenntnis der Japanischen Plecopteren. Bulletin of the Agricultural Experiment Station, Government General of Chosen, Suigen, 1 (1): 1 - 46 + pls I-VI.", "Shimizu, T. 2000. Paraleuctra (Insecta: Plecoptera: Leuctridae) from Japan, with taxonomic notes on the Japanese Leuctridae. Species Diversity, 5: 285 - 303.", "Zhiltzova, L. A. 1974. [Rare genera of the family Leuctridae (Insecta: Plecoptera) in the fauna of the USSR.]. Zoologicheskii Zhurnal, 53 (3): 359 - 364; in Russian.", "Zhiltzova, L. A. 2003. Plecoptera Gruppe Euholognatha. Fauna of Russia and Neighbouring Countries, Insecta Plecoptera, 1 (1): 537 + 7 unnumbered pages; Russian Academy of Sciences, Zoological Institute, St. Petersburg, Nauka, in Russian."]}