Species Details

Euxoa messoria

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

Common NameReaper Dart, Dark-sided Cutworm SeasonalityAdults have been collected in Alberta mid July-late September, with the peak in late August. IdentificationA medium-size (3.2-3.6 cm wingspan) brownish-grey moth. Male antennae are strongly biserrate and bifasculate; female simple. Head and thorax even grey-brown without contrasting prothoracic collar. The basal, antemedian and postmedian lines on the forewings usually well marked and doubled, the later narrowly toothed at the veins. The orbicular and reniform spots are well defined, with the orbicular a large oval. A median line or shade is often present. The terminal area is narrowly darker than the remainder of the wing. Fringe concolorous with wing. Hindwing white in male, shading to light smoky-brown on the margin, more extensively dark shaded in females. There is a small discal dot, the veins are narrowly lined with brown scales, and the fringe is mostly white. Form "atrifera" lacks the cross-lines on the forewings and has a broad black basal dash and a black streak before and between the orbicular and reniform, and the costa is often contrasting paler than the remainder of the wing. Messoria belongs to the subgenus Longivesica, characterized by the extremely long vesica in the male and by the very long appendix bursae, twice the length of the corpus bursae, in females. Lafontaine (1987) provides keys to the subgenera and species of Euxoa>, and illustrates the genitalia of both sexes.

Scientific Name Euxoa messoria Common Name Reaper Dart, Dark-sided Cutworm Habitat Open areas such as grasslands, cultivated areas and clearings. Seasonality Adults have been collected in Alberta mid July-late September, with the peak in late August. Identification
A medium-size (3.2-3.6 cm wingspan) brownish-grey moth. Male antennae are strongly biserrate and bifasculate; female simple. Head and thorax even grey-brown without contrasting prothoracic collar. The basal, antemedian…
A medium-size (3.2-3.6 cm wingspan) brownish-grey moth. Male antennae are strongly biserrate and bifasculate; female simple. Head and thorax even grey-brown without contrasting prothoracic collar. The basal, antemedian and postmedian lines on the forewings usually well marked and doubled, the later narrowly toothed at the veins. The orbicular and reniform spots are well defined, with the orbicular a large oval. A median line or shade is often present. The terminal area is narrowly darker than the remainder of the wing. Fringe concolorous with wing. Hindwing white in male, shading to light smoky-brown on the margin, more extensively dark shaded in females. There is a small discal dot, the veins are narrowly lined with brown scales, and the fringe is mostly white. Form "atrifera" lacks the cross-lines on the forewings and has a broad black basal dash and a black streak before and between the orbicular and reniform, and the costa is often contrasting paler than the remainder of the wing. Messoria belongs to the subgenus Longivesica, characterized by the extremely long vesica in the male and by the very long appendix bursae, twice the length of the corpus bursae, in females. Lafontaine (1987) provides keys to the subgenera and species of Euxoa>, and illustrates the genitalia of both sexes.
Life History
There is a single brood each year, with the eggs over wintering. The larvae are climbing cutworms, sometimes damaging small trees and becoming pests on various crops. The larvae are active in spring and early summer.…
There is a single brood each year, with the eggs over wintering. The larvae are climbing cutworms, sometimes damaging small trees and becoming pests on various crops. The larvae are active in spring and early summer. The prepupal period is reported to be variable in length (Crumb, 1956). Adults and larvae are both nocturnal, and adults are attracted to both sugar baits and light.
Conservation A common, widespread species occasionally reaching pest status; no concerns. Diet Info A wide variety of plants in many families, including tobacco, corn and a wide variety of vegetables. The larvae prefer broad-leaved plants, but also consume grasses and corn seedlings. Range Newfoundland west to Yukon, south to Virginia and Missouri in the east and New Mexico, Arizona and California in the west. In Alberta messoria has been collected throughout the southern half of the province.
Euxoa messoria
Euxoa messoria

Citation

Page Citation for Euxoa messoria

Page Citation

"Species Details - Euxoa messoria, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-4172. Accessed 25 Feb. 2024.

Authorship

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

References

Specimen Information

There are 93 specimens of this Species.

93 results plotted on map in 28 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM17758 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-27

UASM18631 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Hillcrest Collected ByBowman, K. Date Collected1934-08-29

UASM16633 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Hillcrest Collected ByBowman, K. Date Collected1934-08-29

UASM17379 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Hillcrest Collected ByBowman, K. Date Collected1920-09-11

UASM17426 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByStrickland, Edgar H. Date Collected1925-08-19

UASM17427 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Medicine Hat Collected ByBowman, K. Date Collected1943-08-17

UASM17429 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByStrickland, Edgar H. Date Collected1925-08-02

UASM17430 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Jasper National Park, Jasper Collected ByBowman, K. Date Collected1938-09-10

UASM17431 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, High River Collected ByBowman, K. Date Collected1921-08-30

UASM17432 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByMackie, Donald Date Collected1923-08-20

UASM17433 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByMackie, Donald Date Collected1923-08-20

UASM17438 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Hillcrest Collected ByBowman, K. Date Collected1934-08-28

UASM17439 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-23

UASM17440 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByStrickland, Edgar H. Date Collected1925-08-03

UASM17441 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-22

UASM17443 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-27

UASM17445 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-25

UASM17447 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-14

UASM17449 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByBowman, K. Date Collected1923-08-31

UASM17450 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Lethbridge Collected ByStrickland, Edgar H. Date Collected1925-08-03

UASM2552 - Euxoa messoria

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Dinosaur Provincial Park Collected ByAnweiler, G. G.; Troubridge, J. Date Collected2001-08-14

Adult Seasonal Distribution