Trichoptera: Helicopsychidae of Gunnison County, ColoradoHelicopsyche borealis
Snailcase Caddis, Cinnamon caddis, Speckled peter caddis(Hagen) 1861
Updated 1 Feb 2010
TSN 117020
Description
One of the easiest caddisflies to identify as a larvae because it lives in a case made of sand or fine gravel shaped like a snail shell. The larvae out of its case has a comb-shaped anal claw that is also distinctive.
Links
Other Websites:
Illustration - University of Alberta Entomology Collection Species page
Has illustration of male genitalia, description, habitat information, range and more.
Photos - from discoverlife.org
PAN Pesticides database:
http://preview.pesticideinfo.org/List_AquireAll.jsp?Species=783&Effect=
References
Berger,J and Kaster,J 1979 Convergent evolution between phyla: a test case of mimicry between caddisfly larvae (Helicopsyche borealis) and aquatic snails (Physa integra). Evolution 33: 511-513 Abstract and first page
Bergey,EA and Ward,JV 1989 Upstream-downstream movements of aquatic invertebrates in a Rocky Mountain stream, Hydrobiologia, Volume 185( 1) 71-82. Abstract
Helicopsyche borealis and Hesperophylax occidentalis were the only species to show a net upstream movement during the course of this study.
Hagen,HA 1861 Synopsis of the Neuroptera of North America with a list of South American species. Smithsonian Miscellaneous Collections 4, 1-344.
Original description as Notidobia borealis. Hagen's Glossary (pdf)
Hagen, H. A. 1866 Description of a genus of caddis-flies, of which the larvae construct cases known as Helicopsyche. The Entomolgist's Monthly Magazine 2:252-255.
Hagen moves the species Notidobia borealis to a different genus, Helicopsyche borealis.
Hamilton,SW, and Holzenthal,RW 1984 The caddisfly genus Helicopsyche in America, north of Mexico (Trichoptera: Helicopsychidae) (abstract). Pages 167 in Proceedings of the 4th International Symposium on Trichoptera (J. C. Morse, ed.) Dr. W. Junk, The Hague.
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 1494 to 3109m and adult collection dates are 28 Feburary to 7 September.
Quote from page 427: "This species is more common in Colorado than previously reported." They list this species as present in Gunnison county.
Jackson JK, Resh VH. 1992. Variation in genetic structure among populations of the caddisfly Helicopsyche borealis from three streams in northern California, U.S.A. Freshwater Biology 27:29-42. Abstract
Johanson,KA 1998) Phylogenetic and biogeographi analysis of the family Helicopsychidae (Insecta: Trichoptera). Entomologica Scandinavica Supplement (53) 1-172.
Lamberti, GA., Feminella,JW. and VH. Resh 1987 Herbivory and intraspecific competition in a stream caddisfly population Oecologia 73 (1) 75 - 81 DOI: 10.1007/BF00376980 Abstract
Mecom, JO. 1972 Productivity and distribution of Trichoptera larvae in a Colorado mountain stream. Hydrobiologia 40(2): 151 - 176. DOI: 10.1007/BF00016789 Abstract
Has life history data from the St Vrain River in Colorado.
Resh,VH; Lamberti,GA and Wood,JR 1984 Biology of the caddisfly Helicopsyche borealis (Hagen): a comparison of North American populations. Freshwater Invertebrate Biology, (4)172-180 Abstract and first page
Vaughn,CC 1985 Life History of Helicopsyche borealis (Hagen) (Trichoptera: Helicopsychidae) in Oklahoma. American Midland Naturalist, 113(1) 76-83. Abstract and first page
Abstract: "The life history of Helicopsyche borealis was compared for 13 months in two Oklahoma streams that have different thermal regimes. Densities of H. borealis were usually higher in the thermally constant stream. The species was multivoltine with overlapping generations in the thermally constant stream and univoltine in the thermally fluctuating stream."
Vaughn, CC. 1987 Substratum preference of the caddisfly Helicopsyche borealis (Hagen) (Trichoptera: Helicopsychidae) Hydrobiologia 154(1) 201-205. DOI: 10.1007/BF00026840 Abstract
Williams, DD., AT. Read and KA. Moore. 1983. The biology and zoogeography of Helicopsyche borealis (Trichoptera: Helicopsychidae): a Nearctic representative of a tropical genus. Canadian Journal Zoology 61: 2288-2299.
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