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Species Details
Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults fly late May to mid-August.
IdentificationThe antennae of adults are pale brownish-straw colour and two-thirds the length of the body. The basal flagellar annulus is twice the length of the second annulus on the atennae. The vertex of the head is dark chocolate brown, with very pale warts and the dorso-median suture is black. The base of the clasper is square and the dorso-distal process is thumb-like (Nimmo, 1974).
Scientific Name
Glossosoma velona
Habitat
Less turbulent parts of larger rivers or smaller, slower streams.
Seasonality
Adults fly late May to mid-August.
Identification
The antennae of adults are pale brownish-straw colour and two-thirds the length of the body. The basal flagellar annulus is twice the length of the second annulus on the atennae. The vertex of the head is dark…
The antennae of adults are pale brownish-straw colour and two-thirds the length of the body. The basal flagellar annulus is twice the length of the second annulus on the atennae. The vertex of the head is dark chocolate brown, with very pale warts and the dorso-median suture is black. The base of the clasper is square and the dorso-distal process is thumb-like (Nimmo, 1974).
Life History
Annual (?). Data unavailable.
Conservation
Common.
Diet Info
Larvae feed in detritus, algae and diatoms.
Citation
Page Citation for Glossosoma velona
Page Citation
"Species Details - Glossosoma velona, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1055/9-13332. Accessed 25 May. 2025.
References
Author
Ross, Herbert H.
Title
Evolution and Classification of the Mountain Caddisflies.
Publication Date
1956
Pages
213
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 26 specimens of this Species.
UASM5241 - Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, South Saskatchewan River
Collected ByBall, G. E.
Date Collected1955-06-18
UASM5243 - Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, North Saskatchewan River
Collected ByNimmo, A.
Date Collected1966-06-16
UASM5245 - Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Knight's Lake
Collected ByNimmo, A.
Date Collected1968-08-01
UASM6402 - Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByNimmo, A.
Date Collected1965-06-08
UASM6405 - Glossosoma velona
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByWhitehead, D. R.
Date Collected1968-06-24