Species Details

Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

Common NameOregon Dart SeasonalityIn Alberta adults have been collected in late July and August. IdentificationA medium-sized moth (FW length 14-19 mm) with grey-brown to red-brown forewings and smoky brown hindwings. The normal lines are obsolete, but there may be a dark diffuse median line in some specimens. The oval orbicular spot is almost as large as the reniform. The spots often have an incomplete buff line inside the outline. The area between the orbicular and the reniform is darker black or red-brown, and is the most prominent mark on the forewings. The male genitalia are characterized by the broad, almost bowl-shaped sacculus, saccular extensions almost conical and stouter than harpes and about 1/2 the length of the harpes. In similarly marked species the sacculus is narrower and crescentic and the saccular extensions are as thin as or thinner than the harpes.

Scientific Name Euxoa lewisi Common Name Oregon Dart Habitat Higher elevation montane and subalpine coniferous forest. Seasonality In Alberta adults have been collected in late July and August. Identification
A medium-sized moth (FW length 14-19 mm) with grey-brown to red-brown forewings and smoky brown hindwings. The normal lines are obsolete, but there may be a dark diffuse median line in some specimens. The oval…
A medium-sized moth (FW length 14-19 mm) with grey-brown to red-brown forewings and smoky brown hindwings. The normal lines are obsolete, but there may be a dark diffuse median line in some specimens. The oval orbicular spot is almost as large as the reniform. The spots often have an incomplete buff line inside the outline. The area between the orbicular and the reniform is darker black or red-brown, and is the most prominent mark on the forewings. The male genitalia are characterized by the broad, almost bowl-shaped sacculus, saccular extensions almost conical and stouter than harpes and about 1/2 the length of the harpes. In similarly marked species the sacculus is narrower and crescentic and the saccular extensions are as thin as or thinner than the harpes.
Life History Poorly known. The adults are nocturnal and come to light, and there is a single annual brood. Conservation No obvious concerns Diet Info Unknown Range
Another Euxoa species found in the western mountain coniferous forest. E. lewisi ranges from western Alberta across much of BC, south to the Cascades of eastern OR, central CO and UT. Ssp. juliae occurs in…
Another Euxoa species found in the western mountain coniferous forest. E. lewisi ranges from western Alberta across much of BC, south to the Cascades of eastern OR, central CO and UT. Ssp. juliae occurs in California. In Alberta, it has been taken in the mountains from Jasper National Park south to Calgary.

Citation

Page Citation for Euxoa lewisi

Page Citation

"Species Details - Euxoa lewisi, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4170. Accessed 21 Feb. 2024.

Authorship

Name Anweiler, G. G.
Role species page author
Date 2003-12-17

References

Specimen Information

There are 45 specimens of this Species.

45 results plotted on map in 16 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM113993 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Yakima county, Bethel Ridge Collected ByTroubridge, J. Date Collected1997-08-22

UASM113994 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Yakima county, Bethel Ridge Collected ByTroubridge, J. Date Collected1996-07-14

UASM113995 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Yakima county, Bethel Ridge Collected ByTroubridge, J. Date Collected1997-08-22

UASM113996 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM113997 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM113998 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM113999 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM114000 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM114001 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Watch Peak Collected ByTroubridge, J. Date Collected1996-08-16/1996-08-17

UASM114002 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114003 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114004 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114005 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114006 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114007 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Coast Mountains Collected ByTroubridge, J. Date Collected1992-07-12

UASM114008 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114009 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114010 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Blowdown Pass Collected ByTroubridge, J. Date Collected1992-08-01

UASM114011 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Chelan county, Junior Point Collected ByTroubridge, J. Date Collected1998-07-18

UASM114012 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Chelan county, Junior Point Collected ByTroubridge, J. Date Collected1998-07-18

UASM114013 - Euxoa lewisi

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Washington, Chelan county, Junior Point campground Collected ByTroubridge, J. Date Collected1997-08-06

Adult Seasonal Distribution