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Stoneflies - Plecoptera: Chloroperlidae of Gunnison County, Colorado

Sweltsa borealis - Boreal Sallfly

Banks 1895
Updated 6 Jan 2012
TSN 103281


Older publications may refer to this species as Alloperla borealis.

Good Links

On this website:
Introduction to Sweltsa
Key to Chloroperlidae Nymphs
Key to Chloroperlidae Males
Key to Chloroperlidae Females

Other Websites:
Photos, Map, Museum specimens, DNA - Barcodinglife.org


Banks,N 1895 New Neuropterid Insects. Transactions of the American Entomological Society 22: 313-316.

Baumann,RW, Gaufin,AR and Surdick,RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208.
     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 292 Kb

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.
     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.

Brown, Wendy S. 2005 The Stoneflies of Gunnison County, Colorado