Trichoptera: Brachycentridae of Gunnison County, ColoradoAmiocentrus aspilus
Little Western Weedy-Water SedgeRoss, 1938
Updated 18 January 2026
TSN 116934
Locations Collected
Tomichi Creek
Good Links
On this website:
Brachycentridae Introduction
Other Websites:
Photos, Map, Taxon Identifier Numbers - from the Global Biodiversity Information Facility Amiocentrus aspilus at GBIF
Photos, Map, Museum specimens, DNA - Barcodinglife.org
Illustration - University of Alberta Entomology Collection Species page
Has description, habitat information, range and more.
Fly tying - from flyfishingcommunity.com
References
Anderson,NH 1967 Biology and downstream drift of some Oregon Trichoptera. Canandian Entomolologist (99) 507-521.
Flint,OS, Jr. 1984 The genus Brachycentrus in North America, with a proposed phylogeny of the genera of Brachycentridae (Trichoptera). Smithsonian Contributions to Zoology 398:1-58. PDF
Ross,HH 1938 Descriptions of Nearctic Caddisflies, with special reference to the Illinois species. Bulletin of the Illinois Natural History Survey 21 (4) 101-183. PDF
Described as Brachycentrus aspilus.
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 61: "The presence of Amiocentrus aspilus in the SPRB is represented by a single male collected in 1947 (Denning, 1948). Interestingly, this species has not been reported since Denning's 1947 collection. Herrmann and others (1986) reported that this species was restricted to the northern river basins of Colorado (for example, South Platte, North Platte, and Yampa). Additional effort is needed to verify the presence of this species in the SPRB." The elevation is 6,650 feet and the adults emerge in August.
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