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 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.

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/2-5293/9-213641. Accessed 13 Nov. 2024.

References

108 results plotted on map in 48 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM59100 - Agrotis obliqua

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Onefour Collected ByAnweiler, G. G.; Troubridge, J. Date Collected2005-09-02

BIRD18625 - Agrotis obliqua

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Dry Island Buffalo Jump Provincial Park Collected ByBird, C. D. Date Collected2006-05-16

BIRD17193 - Agrotis obliqua

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Dry Island Buffalo Jump Provincial Park Collected ByBird, C. D. Date Collected2006-05-16

BIRD21146 - Agrotis obliqua

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Arrowwood Collected ByBird, C. D. Date Collected2007-06-01

BIRD21147 - Agrotis obliqua

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Arrowwood Collected ByBird, C. D. Date Collected2007-06-01