Species Details
Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults fly from June to August.
IdentificationAdult heads are medium brown and the antennae are banded with light and dark brown. The forewings are usually covered with dense fine setae and the hindwings are greyish-brown with a few apical markings. Spur formula is 2, 4, 4. In males, the basal article of the clasper is bell-shaped. Distal article is as long as the basal article and the ventral lobe is bifurcated and claw-like (Wiggins, 1998).
Scientific Name
Agrypnia improba
Habitat
Standing waters and possibly some slower waters.
Seasonality
Adults fly from June to August.
Identification
Adult heads are medium brown and the antennae are banded with light and dark brown. The forewings are usually covered with dense fine setae and the hindwings are greyish-brown with a few apical markings. Spur…
Adult heads are medium brown and the antennae are banded with light and dark brown. The forewings are usually covered with dense fine setae and the hindwings are greyish-brown with a few apical markings. Spur formula is 2, 4, 4. In males, the basal article of the clasper is bell-shaped. Distal article is as long as the basal article and the ventral lobe is bifurcated and claw-like (Wiggins, 1998).
Life History
Annual?
Conservation
Relatively common.
Diet Info
Larvae are predacious.
Range
This species is common across the northern and montane areas of the continent. It ranges from Alaska, Oregon and Utah, east to Newfoundland and south to Alabama (Wiggins, 1998).
Citation
Page Citation for Agrypnia improba
Page Citation
"Species Details - Agrypnia improba, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3164. Accessed 12 Mar. 2025.
References
Author
Wiggins, Glenn B.
Title
The caddisfly family Phryganeidae (Trichoptera).
Publication Date
1998
Pages
306 p.
Specimen Information
There are 17 specimens of this Species.
UASM5988 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lake Sara
Collected ByNimmo, A.
Date Collected1963-06-29
UASM5987 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Pyramid Lake
Collected ByNimmo, A.
Date Collected1965-07-04
UASM5986 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, 16 1/2 Mile Lake
Collected ByNimmo, A.
Date Collected1965-07-05
UASM5990 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Bow Falls
Collected ByNimmo, A.
Date Collected1965-07-06
UASM5989 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Banff-Jasper Hwy. (BNP)
Collected ByNimmo, A.
Date Collected1967-07-30
UASM6096 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fairview
Collected ByPike, Edward Marshall
Date Collected1980-06-13
UASM6111 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, 16 1/2 Mile Lake
Collected ByNimmo, A.
Date Collected1966-07-06
UASM6113 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Wabamun Lake
Collected ByNimmo, A.
Date Collected1965-07-02
UASM6191 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fairview
Collected ByPike, Edward Marshall
Date Collected1980-06-12
UASM6193 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fairview
Collected ByPike, Edward Marshall
Date Collected1980-06-15
UASM6075 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fairview
Collected ByPike, Edward Marshall
Date Collected1980-06-14
UASM6095 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Jasper National Park, Moab Lake
Collected ByDonald, D. B.
Date Collected1977-06-18
UASM6112 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Johnson Lake
Collected ByNimmo, A.
Date Collected1965-07-06
UASM6114 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Banff National Park, Vermilion Lakes
Collected ByNimmo, A.
Date Collected1965-07-05
UASM6192 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Fairview
Collected ByPike, Edward Marshall
Date Collected1980-06-24
UASM6194 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Eagle Lake
Collected ByNimmo, A.
Date Collected1982-08-26
BIRD34705 - Agrypnia improba
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Rimbey
Collected ByBird, C. D.
Date Collected2010-06-27