Species Details
Anagapetus debilis
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults are flying from mid-July to early August.
IdentificationAdult antennae are about two thirds body length and reddish-brown in colour. The first flagellar annulus is one and a half times the length of the second annulus on the antennae. Both the vertex and the frons are dark brown to chocolate. The male claspers are long, widened distally, curved postero-ventrad and distally bifid.
Scientific Name
Anagapetus debilis
Habitat
Small, pebbly, rippling foothill streams.
Seasonality
Adults are flying from mid-July to early August.
Identification
Adult antennae are about two thirds body length and reddish-brown in colour. The first flagellar annulus is one and a half times the length of the second annulus on the antennae. Both the vertex and the frons are…
Adult antennae are about two thirds body length and reddish-brown in colour. The first flagellar annulus is one and a half times the length of the second annulus on the antennae. Both the vertex and the frons are dark brown to chocolate. The male claspers are long, widened distally, curved postero-ventrad and distally bifid.
Life History
Annual (?). Data not available.
Conservation
Quite uncommon.
Diet Info
Larvae feed in detritus, algae and diatoms.
Range
The known range for A. debilis ranges from Utah and Colorado to Alberta, British Columbia and Oregon. In Alberta, it is found in the far southwest of the province (Highwood area), between 1370 and 1520 meters in altitude.
The known range for A. debilis ranges from Utah and Colorado to Alberta, British Columbia and Oregon. In Alberta, it is found in the far southwest of the province (Highwood area), between 1370 and 1520 meters in altitude.
Citation
Page Citation for Anagapetus debilis
Page Citation
"Species Details - Anagapetus debilis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1049. Accessed 12 Apr. 2025.
References
Author
Ross, Herbert H.
Title
Evolution and Classification of the Mountain Caddisflies.
Publication Date
1956
Pages
213
Author
Wiggins, Glenn B.
Title
Larvae of the North American caddisfly genera (Trichoptera)
Publication Date
1996
Pages
457
Author
Nimmo, A. P.
Title
The adult Trichoptera (Insecta) of Alberta and eastern British Columbia, and their post-glacial origins. II. The families Glossosomatidae and Philopotamidae.
Publication Date
1974
Series Title
Quaestiones Entomologicae
Volume
10
Pages
315-349
Specimen Information
There are 4 specimens of this Species.
UASM5188 - Anagapetus debilis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lusk Creek
Collected ByNimmo, A.
Date Collected1967-07-29
UASM5187 - Anagapetus debilis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cat Creek
Collected ByNimmo, A.
Date Collected1966-07-15
UASM5212 - Anagapetus debilis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Bauerman Brook
Collected ByNimmo, A.
Date Collected1968-08-02
UASM6397 - Anagapetus debilis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lineham Creek
Collected ByNimmo, A.
Date Collected1967-07-29