Species Details
Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
SeasonalityAdults are flying between mid-May to mid-August.
IdentificationAdult antennae are a pale yellow-brown. The vertex of the head is a deep red-brown and the thorax is deep purplish brown-black and laterally with red-brown mottling. The legs are brown and straw-coloured distally with brown spurs. The dorso-posterior edge of segment 9 on the adult male is developed into a pair of large, ventrally curved, tapered and acuminate processes. The clasper is small and has a dorsally projected, almost pedicillate, thumb-like process on the mesal face (Nimmo, 1987).
Scientific Name
Arctopsyche ladogensis
Habitat
Clear, cold streams/rivers on gravel/boulder bottoms.
Seasonality
Adults are flying between mid-May to mid-August.
Identification
Adult antennae are a pale yellow-brown. The vertex of the head is a deep red-brown and the thorax is deep purplish brown-black and laterally with red-brown mottling. The legs are brown and straw-coloured distally…
Adult antennae are a pale yellow-brown. The vertex of the head is a deep red-brown and the thorax is deep purplish brown-black and laterally with red-brown mottling. The legs are brown and straw-coloured distally with brown spurs. The dorso-posterior edge of segment 9 on the adult male is developed into a pair of large, ventrally curved, tapered and acuminate processes. The clasper is small and has a dorsally projected, almost pedicillate, thumb-like process on the mesal face (Nimmo, 1987).
Life History
This species overwinters as the larval stage and pupates in late May or June.
Conservation
Not commonly seen.
Diet Info
The larvae are predacious.
Range
Circumpolar, from western Alaska east to Newfoundland and south to the northeastern United States and Michigan. It is restricted to the boreal forest and northward by the treeline. Ladogensis refers to Lake Ladogen,…
Circumpolar, from western Alaska east to Newfoundland and south to the northeastern United States and Michigan. It is restricted to the boreal forest and northward by the treeline. Ladogensis refers to Lake Ladogen, over which suppiles were flown to Leningrad during WWII.
Citation
Page Citation for Arctopsyche ladogensis
Page Citation
"Species Details - Arctopsyche ladogensis, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-1089. Accessed 16 Mar. 2025.
References
Author
Nimmo, A. P.
Title
The adult Arctopsychidae and Hydropsychidae (Trichoptera) of Canada and adjacent United States.
Publication Date
1987
Series Title
Quaestiones Entomologicae
Volume
23
Pages
1-189
Specimen Information
There are 11 specimens of this Species.
UASM5304 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lake Sara
Collected ByNimmo, A.
Date Collected1963-05-27
UASM5307 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Chickadee Creek
Collected ByNimmo, A.
Date Collected1967-07-01
UASM5302 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, McLeod River
Collected ByNimmo, A.
Date Collected1967-06-16
UASM5303 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, House River
Collected ByNimmo, A.
Date Collected1976-05-28
UASM5305 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Lake Sara
Collected ByNimmo, A.
Date Collected1963-05-29
UASM5306 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, North Saskatchewan River
Collected ByNimmo, A.
Date Collected1966-05-20
UASM5308 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, North Saskatchewan River
Collected ByNimmo, A.
Date Collected1966-05-20
UASM5309 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, House River
Collected ByNimmo, A.
Date Collected1976-05-29
UASM6498 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, House River
Collected ByNimmo, A.
Date Collected1976-05-29
UASM6499 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, House River
Collected ByNimmo, A.
Date Collected1976-05-29
BIRD34694 - Arctopsyche ladogensis
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Winfield
Collected ByBird, C. D.
Date Collected2010-06-12
Adult Seasonal Distribution
- Specimens collected within a specified date range, but specimens collected at the same date and location are counted as one specimen.
- All specimens collected within a specified date range