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Species Details
Oecetis avara
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityIn Illinois, adults can be found from June to early September.
IdentificationAdults are straw yellow to light brown. Forewings have numerous dark spots in the membrane. Male claspers are large, vertical and pinched at half length, with the distal half roughly semi-circular (Ross, 1944).
Scientific Name
Oecetis avara
Habitat
Standing and flowing waters.
Seasonality
In Illinois, adults can be found from June to early September.
Identification
Adults are straw yellow to light brown. Forewings have numerous dark spots in the membrane. Male claspers are large, vertical and pinched at half length, with the distal half roughly semi-circular (Ross, 1944).
Diet Info
Larvae are predacious (Wiggins, 1996).
Range
British Columbia south to New Mexico and from Alaska east to Nova Scotia.
Citation
Page Citation for Oecetis avara
Page Citation
"Species Details - Oecetis avara, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2337/9-301894. Accessed 20 Feb. 2025.
References
Author
LaFontaine, Gary
Title
Caddisflies
Publication Date
1981
Pages
336
Author
Wiggins, Glenn B.
Title
Larvae of the North American caddisfly genera (Trichoptera)
Publication Date
1996
Pages
457
Author
Ross, Herbert, H.
Title
The caddis flies, or Trichoptera, of Illinois.
Publication Date
1944
Volume
23
Pages
326
Specimen Information
There are 4 specimens of this Species.
UASM5994 - Oecetis avara
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Pyramid Lake
Collected ByNimmo, A.
UASM5995 - Oecetis avara
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Pyramid Lake
Collected ByNimmo, A.
UASM264251 - Oecetis avara
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Itaska
Collected BySperling, F. A. H.
Date Collected2006-07-23
UASM264265 - Oecetis avara
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Itaska
Collected BySperling, F. A. H.
Date Collected2006-09-04