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Species Details

Euxoa infausta

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

Common NameVariable Dart; Dingy Dart IdentificationA medium-size, dark dull brown Euxoa. Infausta belongs to a group of 8 species in the infausta group; the good news is that only one other member of the group (E. satiens) is known from AB. The aridland form found in southern AB can be recognized by the even buff-brown or pale grey-brown FW. In forested habitats including the foothills, it is a darker brown with a mottled FW. The HW is almost as dark. See Lafontaine (197) for a key to the infausta group.
Scientific Name Euxoa infausta Common Name Variable Dart; Dingy Dart Habitat In Alberta it has been collected in the mountains and foothills, as well as in the arid shortgrass prairie region. Identification
A medium-size, dark dull brown Euxoa. Infausta belongs to a group of 8 species in the infausta group; the good news is that only one other member of the group (E. satiens) is known from AB. The aridland form found in…
A medium-size, dark dull brown Euxoa. Infausta belongs to a group of 8 species in the infausta group; the good news is that only one other member of the group (E. satiens) is known from AB. The aridland form found in southern AB can be recognized by the even buff-brown or pale grey-brown FW. In forested habitats including the foothills, it is a darker brown with a mottled FW. The HW is almost as dark. See Lafontaine (197) for a key to the infausta group.
Range Euxoa infausta is found from southern SK to Vancouver Island, and from the Northwest Territories south to northern UT and NV and southern CA. Notes
Euxoa holoberba, a synonym of infausta, was described from Calgary specimens. Specimens of infausta from the Brown Creek Rec. Area in the foothills just northwest of Nordegg are smaller and darker than seen from…
Euxoa holoberba, a synonym of infausta, was described from Calgary specimens. Specimens of infausta from the Brown Creek Rec. Area in the foothills just northwest of Nordegg are smaller and darker than seen from anywhere else according to Don Lafontaine. Euxoa infausta is a species found both on the arid grasslands of southern AB as well as in coniferous forests in the foothills.

Citation

Page Citation for Euxoa infausta

Page Citation

"Species Details - Euxoa infausta, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-6349/9-131110. Accessed 05 Jan. 2025.

References

Specimen Information

There are 51 specimens of this Species.

51 results plotted on map in 22 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM112182 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Mount Kobau Collected ByTroubridge, J. Date Collected2000-07-20

UASM112183 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Mount Kobau Collected ByTroubridge, J. Date Collected1999-08-04

UASM112184 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Mount Kobau Collected ByTroubridge, J. Date Collected2000-07-20

UASM112185 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1998-06-12

UASM112186 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected2001-07-13

UASM112187 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1997-07-04

UASM112188 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1998-07-02

UASM112189 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1997-07-04

UASM112190 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1997-07-04

UASM112191 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Seton Lake Collected ByTroubridge, J. Date Collected1996-07-05

UASM112192 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected1999-07-26

UASM112193 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Lillooet Collected ByTroubridge, J. Date Collected2001-07-13

UASM112194 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: British Columbia, Okanagan Falls Collected ByTroubridge, J. Date Collected1990-07-22/1990-07-28

UASM112195 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Lane county, Frissell Point Collected ByTroubridge, J. Date Collected1995-09-02

UASM112196 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Lane county, Frissell Point Collected ByTroubridge, J. Date Collected1995-09-02

UASM112197 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Lane county, Frissell Point Collected ByTroubridge, J. Date Collected1995-09-02

UASM112198 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Lane county, Frissell Point Collected ByTroubridge, J. Date Collected1996-07-26

UASM112199 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Baker county, Cornet Creek Collected ByTroubridge, J. Date Collected2002-07-12

UASM112200 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

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

UASM112201 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Jackson county, Mount Ashland Collected ByTroubridge, J.; Crabo, L. Date Collected1995-08-03

UASM112202 - Euxoa infausta

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: Oregon, Jackson county, Mount Ashland Collected ByTroubridge, J. Date Collected1998-08-02

Adult Seasonal Distribution