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Species Details
Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum Read more about this collection »
IdentificationA medium size moth (forewing length about 35 mm) with dark blackish brown or reddish brown forewings crossed by darker antemedian and postmedian lines. The hindwings are dark brown. It can be separated from the very similar A. vancouverensis by the elongate hollow basal dash and claviform streak filled with brown scales (black filled in vancouverensis). It is also similar to and difficult to separate from Agrotis volubilis. Males of volubilis have pale whitish wings while those of obliqua are dark. Many specimens of vancouverensis and obliqua are difficult to separate, and are frequently found misidentified in collections
Scientific Name
Agrotis obliqua
Habitat
In Alberta is most common in the wooded parts of the parklands and foothills, but also can be found throughout the boreal forest and in wooded valleys in the grasslands region.
Identification
A medium size moth (forewing length about 35 mm) with dark blackish brown or reddish brown forewings crossed by darker antemedian and postmedian lines. The hindwings are dark brown. It can be separated from the very…
A medium size moth (forewing length about 35 mm) with dark blackish brown or reddish brown forewings crossed by darker antemedian and postmedian lines. The hindwings are dark brown. It can be separated from the very similar A. vancouverensis by the elongate hollow basal dash and claviform streak filled with brown scales (black filled in vancouverensis). It is also similar to and difficult to separate from Agrotis volubilis. Males of volubilis have pale whitish wings while those of obliqua are dark. Many specimens of vancouverensis and obliqua are difficult to separate, and are frequently found misidentified in collections
Life History
Although this is not an uncommon moth, the life history is poorly known. The immature stages and host plants are unknown. There is a single annual brood with adults in the spring and early summer.
Range
Agrotis obliqua is a widespread moth, found from Newfoundland to Vancouver Island, and from Churchill to southern Arizona.
Citation
Page Citation for Agrotis obliqua
Page Citation
"Species Details - Agrotis obliqua, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-5293/9-11515. Accessed 16 Jun. 2024.
References
Author
Lafontaine, J. Donald
Title
Noctuoidea : Noctuidae (part)
Publication Date
2004
Pages
385 pp.
Specimen Information
There are 108 specimens of this Species.
UASM107011 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Yakima county, Bethel Ridge
Collected ByTroubridge, J.
Date Collected1996-07-14
UASM107012 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Kittitas county, Quartz Mountain
Collected ByTroubridge, J.
Date Collected1996-07-13
UASM107013 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: Washington, Okanogan county, Slate Peak
Collected ByTroubridge, J.
Date Collected1991-07-27
UASM107014 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedUnited States: California, Mono county, Tioga Pass
Collected ByTroubridge, J.; Crabo
Date Collected1995-07-31/1995-08-01
UASM106999 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: British Columbia, Mission Ridge
Collected ByTroubridge, J.
Date Collected1998-07-10
JD2322 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kootenay Plains ER Ecological Reserve
Collected ByDombroskie, J. J.
Date Collected2007-05-31
UASM103550 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-14
UASM103551 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-21
UASM103552 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Willmore Wilderness Park
Collected ByMacaulay, D. A.; Hilchie, G.
Date Collected2007-07-21
BIRD32055 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Arrowwood
Collected ByBird, C. D.
Date Collected2009-05-29
UASM210003 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kananaskis Country
Collected ByBrowett, R.
Date Collected1957-06-05
UASM210004 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kananaskis Country
Collected ByBrowett, R.
Date Collected1957-06-05
UASM210005 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Kananaskis Country
Collected ByBrowett, R.
Date Collected1957-06-05
UASM210006 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Edmonton
Collected ByLawrie, D.
Date Collected1998-06-06
UASM210007 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dunvegan Provincial Park
Collected ByDombroskie, J. J.; Bromilow, S.
Date Collected2006-05-11
UASM210008 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dunvegan Provincial Park
Collected ByDombroskie, J. J.; Bromilow, S.
Date Collected2006-05-11
UASM210009 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Peace River
Collected ByHood, B.
Date Collected2004-06-16
UASM210010 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Dunvegan
Collected BySchmidt, C.
Date Collected2005-05-30
UASM210011 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Waterton Lakes National Park, Blakiston Creek
Collected BySchmidt, B. C.
Date Collected2005-07-10
POHL-13-01060 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cypress Hills Provincial Park
Date Collected1996-06-15
POHL-13-01061 - Agrotis obliqua
University of Alberta E.H. Strickland Entomological Museum
Place CollectedCanada: Alberta, Cypress Hills Provincial Park
Date Collected1996-06-15