Stoneflies - Plecoptera: Capniidae of Gunnison County, ColoradoIsocapnia crinita - Hooked Snowfly(Needham and Claassen) 1925Updated 13 Sept 2011
TSN 102749 NotesRare, two of the three records of I. crinita are from Gunnison County (Nelson and Baumann, 1989). The genus Isocapnia was previously included in Capnia. Older publications may refer to this species as Capnia crinita.Good LinksOn this website:Isocapnia grandis Introduction to Isocapnia Other Websites: Kondratieff, Boris C. (coordinator). 2000. Mayflies of the United States. Jamestown, ND: Northern Prairie Wildlife Research Center Online. (Version 12DEC2003). http://www.npwrc.usgs.gov/resource/distr/insects/sfly/usa/101.htm ReferencesBaumann,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 78: "This rare species occurrs in both creeks and rivers. The adults emerge from March to May. " Illustrations include Figure 232, male terminalia, lateral view; Figure 233 male terminalia dorsal view on page 79. 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 390: "This rare species is presently known from only three localities in Colorado: Gunnison Co., Gunnison River, Gunnison, 18 April 1954, W.E. Ricker, 1 male,1 female (CNC); Routt Co., Yampa River, Hwy 40, eat of Hayden, 9 May 1997, R.W. Baumann, 1 micropterous male (BYU); Saguache Co., Tomichi Creek, Hwy 50, west of Sargents, 7 May 1992, R.W. Baumann, B.C. Kondratieff and J.T. Zenger, 3 micropterous male (CSU, BYU). " Knight,AW and Gaufin,AR 1966 Altitudinal distribution of stoneflies (Plecoptera) in a Rocky Mountain drainage system. Journal of the Kansas Entomological Society 39(4) 668-675. First page Nebeker,AV and Gaufin,AR 1967 Geographic and seasonal distribution of the family Capniidae of western North America (Plecoptera). Journal of the Kansas Entomological Society 40(3)415-421 Abstract and first page Nelson,RC and Baumann,RW 1989 Systematics and distribution of the winter stonefly genus Capnia (Plecoptera: Capniidae) in North America. Great Basin Naturalist 49, 289-363. Stanford JA; Gaufin AR. 1974 Hyporheic communities of two Montana rivers. Science 185:700-702. PDF |