Stoneflies - Plecoptera: Chloroperlidae of Gunnison County, ColoradoSweltsa borealis - Boreal SallflyBanks 1895Updated 26 02 2026
TSN 103281 
NotesOlder publications may refer to this species as Chloroperla borealis or Alloperla borealis.Good LinksOn this website:Introduction to Sweltsa Key to Chloroperlidae Nymphs Key to Chloroperlidae Males Key to Chloroperlidae Females Other Websites: Photos, Map, Taxon Identifier Numbers - from the Global Biodiversity Information Facility Sweltsa borealis at GBIF Photos, Map, Museum specimens, DNA - Barcodinglife.org Plecoptera Species File Sweltsa borealis by DeWalt,RE; Hopkins,H; Neu-Becker,U and Stueber,G 2024 ReferencesBanks,N 1895 New Neuropterid Insects. Transactions of the American Entomological Society 22: 313-316. PDFDescribed as Chloroperla borealis  Baumann,RW, Gaufin,AR and Surdick,RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208. PDF Quote from page 178: "This species is common in creeks and small rivers. The adults emerge from April through October." Bottorff,RL and Bottorff,LD 2007 Phenology and diversity of adult stoneflies (Plecoptera) of a small coastal stream, California. Illiesia 3(1):1-9 PDF Kondratieff,BC and Baumann,RW 2002 A review of the stoneflies of Colorado with description of a new species of Capnia (Plecoptera: Capniidae). Transactions of American Entomological Society 128 (3) 385-401. Quote from page 394: "A species typical of small headwater rheocrenes and snowmelt streams throughout the Mountain and Plateau regions." Needham,JG and Claassen,PW 1925 A Monograph of the Plecoptera of North America. Entomological Society of America, Lafayette, Indiana. 397 pages. PDF Discussed as Alloperla borealis on page 118. Surdick,RF 1985 Nearctic Genera of Chloroperlinae (Plecoptera: Chloroperlidae). University of Illinois Press, Urbana, IL. 146 pages. Surdick,RF 1995a New western nearctic Sweltsa (Plecoptera: Chloroperlidae). Proceedings of the Entomological Society of Washington 97 (1) 161-177. Ward,JV, Kondratieff,BC and Zuellig,RE 2002 An Illustrated Guide to the Mountain Stream Insects of Colorado. 2nd ed. University Press of Colorado, Boulder, Colorado. 219 pages. Illustration of S. borealis nymph on page 75, figure 37. Zuellig,RE; Heinold,BD; Kondratieff,BC and Ruiter,DE 2012 Diversity and Distribution of Mayflies (Ephemeroptera), Stoneflies (Plecoptera), and Caddisflies (Trichoptera) of the South Platte River Basin, Colorado, Nebraska, and Wyoming, 1873-2010. U.S. Geological Survey Data Series 606, 257 p. PDF - caution 46MB Quote from page 43: "This species is common in small, high-elevation streams in the SPRB and often co-occurs with S. coloradensis based on records herein." The elevation range is 8,550-10,850 feet and the adults emerge from May-September. |