Title: Helicopsyche borealis (Hagen) - a caddisfly, larva and case

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MNO: 3700
Create Date: 02-12-12
Last Edit: 03-10-10
Media Type: Image
File Type:
File Size: 1,56
Status: approved

Description: The photo specimen, about 8 mm in length, is Helicopsyche borealis, the only helicopsychid of Alberta. The snail-like spiral shell of sand grains is diagnostic, as is the strongly curved shape of the larvae. Larvae are found in streams and moderately large lakes. In the Sturgeon River of central Alberta, at the outflow of Lac Ste. Ann, Helicopsyche borealis populations had a one-year cycle. Larvae probably feed mainly on detritus. Photograph: Cheryl Podemski

Author(s): Hugh Clifford

Keywords: | Animalia | Animalia | Arthropoda | Gastropoda | Helicoppsychidae | Helicopsychidae | Insecta | Mollusca | Prosobranchia | Trichoptera |

Alberta Curriculum Keywords: None

Biology Course Keywords: None