Claassenia sabulosa

• Main Authors: Stark, Bill P., Sivec, Ignac
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2010
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Plecoptera; Perlidae; Claassenia; Claassenia sabulosa; Arctic; Yankee
• Online Access: https://doi.org/10.5281/zenodo.4753020; http://treatment.plazi.org/id/2F298794934BFFF4FEA4FD191BA152F7

Claassenia sabulosa (Banks) (Figs. 14-19) Perla sabulosa Banks, 1900:242. Holotype ♀ (MCZ), Washington, Yakima Adelungia arctica Klap{lek, 1916:78. Syntype ♂, ♀ (BMNH?), Arctic America. Synonymy by Ricker (1952) Perla languida Needham & Claassen, 1925: 100. Holotype ♂ (Cornell University), Wyoming, Yellowstone River. Synonymy by Ricker (1952) Material examined. Alberta: Bow River, ca. 1 mi S Cochrane, 3 September 1974, L. Dosdall, 1♂, 1♀ (BPS). California: Siskiyou Co., Klamath River, Sarah Totten Campground, 8 July 1979, B. Stark, K.W. Stewart, 1♂ (BPS). Colorado: Mesa Co., Colorado River, 2 mi SE DeBeque, 11 August 1973, B. Stark, R.W. Baumann, 2♂, 1♀ (BPS). Montana: Lincoln Co., Yaak River, Hwy 2, Yaak River Campground, 19 July 1979, B. Stark, K.W. Stewart, R.W. Baumann, 1♂, 1♀ (BPS). Park Co., Yellowstone River, Pray, 21-26 July 1989, B. Stark, J. Parham, T. Moore, D. Tanner, 20♂, 4♀ (BPS). Park Co., Yellowstone River, Hwy 89, Yankee Jim River Access, 19 August 2004, B. Stark, I. Sivec 2♂, 1♀ (BPS). Utah: Summit Co., Weber River, 1 mi W Peoa, 16 July 1974, B. Stark, 4♂ (BPS). Uintah Co., Green River, Dinosaur National Monument, 2 July 1974, B. Stark, 5♂ (BPS). Washington: Yakima, 1♀ ( sabulosa holotype, MCZ). Adults of this species are illustrated in Baumann et al. (1977), Stark (2004), Stark & Gaufin (1976) and Stewart & Stark (2008), larvae are described and illustrated by Stewart & Stark (2002), and SEM images of the eggs are available in Stark (2004) and Stark & Gaufin (1976). Additional images and comparative details are provided below for the egg. Egg. Spindle shaped with low button-like collar (Figs. 14-15). Total length ca. 440-450 μm, equatorial width ca. 314-320 μm. Anchor cap- shaped, margins studded with mushroom bodies, but crown bare (Fig. 18). Most of chorionic surface covered with obscure, hexagonal follicle cell impressions; anterior pole covered with more prominent follicle cell impressions for apical length of ca. 73-79 μm (Fig. 16); external membrane on anterior pole ...