Claassenia radiata
Creators: name: Stark, Bill P.
name: Sivec, Ignac
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Perlidae
Claassenia
Claassenia radiata

description: <i>Claassenia radiata</i> (Klapálek) (Figs. 12-13) <i>Adelungia radiata</i> Klap{lek, 1916:78. Holotype &amp;male; (NMNH), Manchuria <i>Claassenia radiata</i>: Wu, 1938:144. <i>Acroneuria manchuriana</i> Banks, 1920:315. Lectotype &amp;male; (USNM), Yalu River, Manchuria / Korea. New synonymy <b>Material examined.</b> China: Manchuria, 1&amp;male; (<i>radiata</i> holotype, NMNH). Manchuria and Korea: Yalu River, 150-200 miles from mouth, May 1914, A. DeC. Sowerby, 1&amp;male; (<i>manchuriana</i> lectotype, USNM). Same data, 1&amp;male; (USNM). <b>Adult habitus.</b> Color pattern obscured by specimen condition. The following details are extracted from Banks (1920) description of <i>C. manchuriana</i>. Head mostly dull yellowish but ocellar area connected by a black V-mark. Abdomen dark above and yellow brown ventrally. Wings and veins brown. <b>Male.</b> Macropterous, forewing length 22-25 mm. Hemitergal lobes slender, finger-like and more or less cylindrical for most of length in both dorsal (Fig. 12) and lateral (Fig. 13) aspect; dorsal margin bearing a few sensilla basiconica. Tergum 9 armed with a field of small sensilla basiconica scattered over mesal hump; a smaller patch of sensilla basiconica occurs on tergum 8. Aedeagus a slender, membranous cylinder armed mid-ventrally with a patch of microtrichia and armed dorsolaterally with a sparse field of fine setal spines beyond midlength. <b>Female.</b> The following data are extracted from Banks (1920). Forewing length about 28 mm (wing expanse 60 mm). Subgenital plate slightly concave and projecting little beyond posterior margin of sternum 8. <b>Larva.</b> Unknown. <b>Comments.</b> The type series of <i>C. radiata</i> and <i>C. manchuriana</i> are from the same region and our study of the male types of both species indicate they are morphologically indistinguishable. Consequently, we place <i>C. manchuriana</i> as a junior synonym of <i>C. radiata</i>. The type series for <i>C. manchuriana</i> includes, according to Banks (1920) “ six specimens ” all from the same site, and at least one of these is a female. In 1974, one of us (BPS) studied a specimen bearing a type label which has been regarded as the holotype of <i>C. manchuriana</i>. Although apparently no other USNM specimen from this series bears such a label, we designate the male specimen from the USNM series bearing the “type” label as lectotype in order to provide stability for this name. We have seen only the lectotype and one additional male from the USNM; the female specimen may have been lost.
description: Published as part of <i>Stark, Bill P. &amp; Sivec, Ignac, 2010, Systematic Notes On The Genus Claassenia Wu (Plecoptera: Perlidae), With Description Of A New Species, pp. 303-314 in Illiesia 6 (24)</i> on page 306, DOI: 10.5281/zenodo.4753177
description: {"references": ["Wu, C. F. 1938. Plecopterorum Sinensium: A monograph of the stoneflies of China (Order Plecoptera). Peking. 210 pp.", "Banks, N. 1920. Perlidae. Pp. 314 - 325 in New neuropteroid insects. Bulletin of the Museum of Comparative Zoology, 64: 299 - 362."]}