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Updated 9 February 2026
TSN 115106 Good LinksOn this website:Introduction to Rhyacophila Other Websites: Photos, Map, Taxon Identifier Numbers - from the Global Biodiversity Information Facility Rhyacophila harmstoni at GBIF Photos, Map, Museum specimens, DNA - Barcodinglife.org ReferencesErman,NA 1989 Species composition, emergence, and habitat preferences of Trichoptera of the Sagehen Creek Basin, California, USA. The Great Basin Naturalist, 186-197. PDFThe author found Rhyacophila harmstoni in Sagehen Creek, springs and spring-fed streams. Herrmann,SJ; Ruiter,DE and Unzicker,JD 1986 Distribution and records of Colorado Trichoptera. Southwestern Naturalist 31 (4) 421-457. They note the habitat for this species is streams and rivers, the altitudinal range is 2713 to 3024m and adult collection dates are 18 April to 18 August. Quote from page 450: "To date we know of reports of this species only from Utah (Ross, 1944), California (Denning, 1956) and Colorado. " They list this species as present in Gunnison county. Ross,HH 1944 The Caddis Flies, or Trichoptera, of Illinois. Natural History Survey of Illinois 23 Los Angeles, CA. 326 pages. Original description of this species. 
Schmid,F 1970 Le genre Rhyacophila et la famille des Rhyacophilidae (Trichoptera). Memoires de la Societe Entomologique du Canada 66:1-230. 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 99: "This species is common in the higher elevation part of the SPRB, north of the Clear Creek drainage. It is interesting that few records are reported south of Clear Creek." The elevation range is 9,700-11,000 feet and the adults emerge from July-August. |