Hydropsyche cockerelli (Trichoptera) of Gunnison County, Colorado

Trichoptera: Hydropsychidae of Gunnison County, Colorado

Hydropsyche cockerelli - Spotted sedge

Banks, 1905

Updated 4 Dec 2009

Links

On this website:
Hydropsyche Introduction

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

References

Alstad,DN 1980 Comparative biology of the common Utah Hydropsychidae (Trichoptera). American Midland Naturalist 103, 167-174.

Banks,N 1905 Descriptions of new neuropteroid insects. Transactions of American Entomological Society 32, 1-20.
Nathan Banks 1905 description of the caddisfly Hydropsyche cockerelli

Nathan Banks 1905 description of the caddisfly Hydropsyche cockerelli

Nathan Banks 1905 Figures 8 and 9 illustrating of the male genitalia of the caddisfly Hydropsyche cockerelli

Canton,SP; Ward,JV 1981 The aquatic insects, with emphasis on Trichoptera, of a Colorado stream affected by coal strip-mine drainage. Southwestern Naturalist 25 4, 453-460.
     They studied Trout Creek where it runs through the Edna Coal Mine in northwestern Colorado. The mine spoils were 30 meters from the edge of the creek (approximately a 100 foot buffer zone). They found the aquatic insect density (numbers per square meter) and biomass (weight in grams per square meter) did not change above and below the mine. The Shannon-Weaver Diversity index also showed no difference between sites. However the community structure (which species were present and proportions) did change. Since there were irrigation water and cattle influences at their downstream site, their results may reflect these additional water uses. They note the biggest visible change at this mine is the loss of willow and alder trees downstream of the mine. The caddisfly population changed the most between sites, shifting from a mix of families above the mine to dominance by Hydropsychidae and Glossosomatidae below the mine.
Quote from page 457: "The Hydropsychidae (Arctopsyche inermis, Hydropsyche cockerelli, and H. oslari) were unimportant at C2 (reference site), comprising only 3% of trichopteran numbers, while at C4 (mine affected), with increased abundance of Hydropsyche spp., they accounted for 16% of the density."

Hauer,FR; Stanford,JA 1982 Ecology and life histories of three net-spinning caddisfly species (Hydropsychidae: Hydropsyche) in the Flathead River, Montana. Freshwater Invertebrate Biology 1:18-29.
     They present life history data on the three species H. cockerelli, H. oslari and H. occidentalis in the tailwaters of Hungry Horse Dam. Quotes from the abstract "H. cockerelli and H. oslari were significantly (P < 0.05) more abundant than H. occidentalis at all sampling sites. H. cockerelli larvae grew primarily during late summer and early autumn while temperatures were > 7 degrees C. Larvae overwintered in 5th instar and emerged as adults in mid-June."

Hauer,FR; Stanford,JA; Ward,JV 1989 Serial discontinuities in a Rocky Mountain river. II. Distribution and abundance of Trichoptera. Regulated Rivers: Research and Management 3, 177-182.

Herrmann,SJ; Ruiter,DE; 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 1311 to 3109m and adult collection dates are 16 May to 7 September. Quote from page 428: "In Colorado this species is common and widespread in the foothills and montane zones both east and west of the continental divide." They list this species as present in Gunnison county.

Nimmo, A. P. 1987. The adult Arctopsyche and Hydropsyche (Trichoptera) of Canada and adjacent United States. Questiones Entomologicae 23:1-189.

del Rosario,RB; Betts,EA; Resh, VH. 2002 Cow manure in headwater streams: tracing aquatic insect responses to organic enrichment. Journal of the North American Benthological Society 21: 278-289 Abstract

Schefter,PW; Wiggins,GB (1986) A systematic study of the nearctic larvae of the Hydropsyche morosa group (Trichoptera: Hydropsychidae). Life Sciences Miscellaneous Publications of the Royal Ontario Museum.

Voelz,NJ; Ward,JV 1996a Microdistributions, food resources and feeding habits of filter-feeding Trichoptera in the Upper Colorado River. Archiv für Hydrobiologie 137 3, 325-348.

Zuellig,RE; Kondratieff,BC; Rhodes,HA 2002 Benthos recovery after an eposodic sediment release into a Colorado Rocky Mountain river. Western North American Naturalist 62 1, 59-72.

Brown, Wendy S. 2005 Trichoptera (Caddisflies) of Gunnison County, Colorado, USA
www.gunnisoninsects.org