Stoneflies - Plecoptera: Capniidae of Gunnison County, ColoradoUtacapnia logana
Logan Snowfly, Tiny Winter Blacks(Nebeker and Gaufin) 1965
Updated 4 January 2026
TSN 102758
Notes
The genus Utacapnia was previously included in Capnia. Older publications may refer to this species as Capnia logana.
Good Links
On this website:
Introduction to Utacapnia
Other Websites:
Photos, Map, Taxon Identifier Numbers - from the Global Biodiversity Information Facility Utacapnia logana at Gbif
Photos, Map, Museums, DNA - Barcode of Life Data System
References
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 92: "This species is found commonly in creeks and rivers throughout its range. It is found at rather high elevations and shows variation in wing length at different elevations and latitudes. The adults emerge from February to May. "
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.
Quoted from page 391: "Although this species is not abundant in the state, it has been found at several localities ranging from Routt Co. to Larimer Co. in the north, and San Juan Co. to Las Animas Co. in the south."
Nebeker,AV and Gaufin,AR 1965 The Capnia columbiana complex of North America (Capniidae: Plecoptera). Transactions of the American Entomological Society 91:467-487.
Original description of this animal as Capnia logana.
Ruse,LP and Herrmann,SJ 2000 Plecoptera and Trichoptera species distribution related to environmental characteristics of the metal-polluted Arkansas River, Colorado. Western North American Naturalist 60 (1) 57-65. PDF
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 41: "Populations of this species typically occur at rather high elevations (Baumann and others, 1977) but in the SPRB this species was collected mostly from more moderate elevations. The short winged males are distinguished easily on snow along stream margins during late winter (February through March)." The elevation range is 6,000-8,550 feet and the adults emerge from February-March.
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