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Stoneflies - Plecoptera: Perlodidae of Gunnison County, Colorado

Isoperla sobria - Colorado Stripetail

(Hagen, 1874)

Updated 22 Dec 2023
TSN 103037


Older publications may refer to this species as Isoperla ebria, Perla ebria or Clioperla ebria.

Good Links

On this website:
Isoperla Introduction
Key to Perlodidae nymphs

Other Websites:
Photos, Map, Museums, DNA - Barcode of Life Data System

Adult Photo - from the Tree of Life


Baumann, RW Gaufin, AR, Surdick, RF 1977 The stoneflies (Plecoptera) of the Rocky Mountains. Memoirs of the American Entomological Society 31, 1-208. PDF
     Discussed as Isoperla ebria. Quote from page 142: "This species commonly occurs in creeks and rivers. The adults emerge from May through July."

Gill,BA Kondratieff,BC and Sandberg,JB 2015 Evaluation of the morphological species concepts of 16 western Nearctic Isoperla species (Plecoptera: Perlodidae) and their respective species groups using DNA barcoding. Illiesia: International Journal of Stonefly Research, 11(11), 130-146. PDF

Hagen,HA, 1874 Report on the Pseudo-neuroptera and Neuroptera collected by Lieut. W.L. Carpenter in 1873 in Colorado. Annual Report of the U.S. Geological and Geographical Survey of the Teritories, embracing Colorado, 7: 571-577.
     Original description of this animal as Perla ebria.

Kondratieff,BC; 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 397: "Isoperla sobria is the high mountain (>2,400m) Isoperla of Colorado. Adults are relatively uncommonly collected, and previously were reported from Colroado as I. ebria (Hagen) by Stark et al. (1973) and Baumann et al. (1977). Szczytko and Stewart (1979) determined this species to be a junior synonym of I. sobria. "

Needham,JG and Claassen,PW 1925 A Monograph of the Plecoptera of North America. Entomological Society of America, Lafayette, Indiana. 397 pages.
     Described as Clioperla ebria

Sandberg,JB 2011 Vibrational communication of
Isoperla Banks from California and Oregon (Plecoptera: Perlodidae). Illiesia 2011 7(1):1-23. PDF

Sandberg,JB and Stewart,KW 2003 Continued studies of drumming in North American Plecoptera; Evolutionary implications. In: Research Update on Ephemeroptera and Plecoptera. Ed: Gaino,E University of Perugia, Perugia, Italy, 73-81.
     Has the sonogram of a male in a duet with a female, with two variations on the female answer.

Sandberg,JB and Kondratieff,BC 2013 The Isoperla of California (Plecoptera: Perlodidae); Updated male descriptions and adult keys for 18 western Nearctic species. Illiesia (9)34-64. PDF

Sandberg, JB and Stewart, KW 2006 Continued Studies of Vibrational Communication (Drumming) Of North American Plecoptera. Illiesia 2006 2(1):1-14. http://illiesia.speciesfile.org PDF (227 Kb)
     Has sonograms of the male half of a duet between a male and female I. sobria from Oregon.

Stewart,KW and Stark,BP 2002 Nymphs of North American Stonefly Genera. 2nd edition The Caddis Press, Columbus, Ohio. 510 pages.
     Photo of live mature nymph pattern on page 110 figure 6.42

Szczytko,SW and Stewart,KW 1979a The genus Isoperla (Plecoptera) of western North America; holomorphology and systematics, and a new stonefly genus Cascadoperla. Memoirs of the American Entomological Society 32, 1-120.

Brown,WS 2004 Stoneflies or Plecoptera of Gunnison County, Colorado