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Trichoptera: Rhyacophilidae

Rhyacophila acropedes Banks, 1914

Updated 22 Jan 2019


Synonymized or merged with Rhyacophila brunnea by Smith and Manuel (1984).

Good Links

On this website:
Rhyacophila brunnea
Introduction to Rhyacophila

Other Websites:
University of Alberta Entomology Collection Species page
     Has illustration of male genitalia, description, habitat information, range and more.


Banks, N. 1914. American Trichoptera- notes and descriptions. Canadian Entomologist 46:201-204.

Peckarsky,BL; Dodson,SI and Conklin,DJ 1985 A key to the aquatic insects of streams in the vicinity of the Rocky Mountain Biological Lab, including chironomid larvae from streams and ponds. Colorado Division of Wildlife, Denver CO. 47 pages.
     Includes R. brunnea as R. acropedes in a larval key.

Rader RB and Ward JV. 1988 Influence of regulation on environmental conditions and the macroinvertebrate community in the upper Colorado River. Regulated Rivers: Research and Management 2:597-618.
     Quote from page 611: "The reference site was represented by twelve species of caddisflies, including relatively abundant populations of Arctopsyche grandis and Rhyacophila acropedes. Trichopterans at the regulated site, however, were represented by nine rare and three slightly more abundant caddisflies (Hydroptila sp., Brachycentrus americanus, and Hesperophylax designatus). The abundance of net-spinning caddisflies was significantly reduced in the regulated site compared to both reference and recovery locations (p=0.05), as has been reported by several workers (Armitage and Capper, 1976; Müller, 1962; Ward, 1987). "

Short,RA and Ward,JV 1980 Macroinvertebrates of a Colorado high mountain stream. The Southwestern Naturalist, 23-32. PDF

Short,RA; Canton,SP and Ward,JV 1980 Detrital processing and associated macroinvertebrates in a Colorado mountain stream. Ecology, 61(4), 727-732. PDF
     Rhyacophila acropedes nymphs were found with all 4 of the plant species used to make leaf packs; alder, willow, aspen and pine.

Smith,SD 1968 The Rhyacophila of the Salmon river drainage of Idaho with special reference to larvae. Annals of the Entomological Society of America 61 3, 655-674.
     Has a key to larvae that includes R. acropedes, which we now know as R. brunnea. However the author could not distinguish R. acropedes from the larvae of R. vao.

Smith SD and KL Manuel 1984 Reconsideration of the nearctic species of the Rhyacophila acropedes subgroup based on adults (Trichoptera: Rhyacophilidae). In Proc. Fourth Int. Symp. Trichoptera, JC Morse, ed Dr. W. Junk, The Hague.
     Synonymizes R. acropedes as Rhyacophila brunnea.

Brown, WS 2004 Trichoptera of Gunnison County, Colorado, USA