Species Details

Acronicta sperata

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

Common NameHopeful Dagger Moth SeasonalityAdults have been collected in Alberta in late May and June. IdentificationA medium-size (3.0-3.5 cm wingspan) pale buff grey moth. They lack "dagger-marks" and there is no basal dash. The antemedian and the post median lines are doubled, and the area between the two is usually paler than the remainder of the wing. The postmedian line is dragged outward at each vein, giving it a saw-toothed appearance. The orbicular spot is a small open circle, and the reniform is a larger, darker incomplete spot. The forewings appear powdery and the markings are all somewhat blurred. The hindwings are shining white, with a bit of grey dusting toward the outer margin. The antennae are simple. The sexes are similar, with females being slightly darker, especially on the hindwings. The pale color and soft blurry pattern will separate it from the other Alberta dagger moths.

Scientific Name Acronicta sperata Common Name Hopeful Dagger Moth Habitat Dry deciduous woodland and riparian shrub in the grasslands. Seasonality Adults have been collected in Alberta in late May and June. Identification
A medium-size (3.0-3.5 cm wingspan) pale buff grey moth. They lack "dagger-marks" and there is no basal dash. The antemedian and the post median lines are doubled, and the area between the two is usually paler than…
A medium-size (3.0-3.5 cm wingspan) pale buff grey moth. They lack "dagger-marks" and there is no basal dash. The antemedian and the post median lines are doubled, and the area between the two is usually paler than the remainder of the wing. The postmedian line is dragged outward at each vein, giving it a saw-toothed appearance. The orbicular spot is a small open circle, and the reniform is a larger, darker incomplete spot. The forewings appear powdery and the markings are all somewhat blurred. The hindwings are shining white, with a bit of grey dusting toward the outer margin. The antennae are simple. The sexes are similar, with females being slightly darker, especially on the hindwings. The pale color and soft blurry pattern will separate it from the other Alberta dagger moths.
Life History
A solitary defoliator, with a single brood each year, which overwinters in the pupal stage. The adults are attracted to light. Acronicta sperata is one of the least common Alberta dagger-moths. They appear to be…
A solitary defoliator, with a single brood each year, which overwinters in the pupal stage. The adults are attracted to light. Acronicta sperata is one of the least common Alberta dagger-moths. They appear to be associated with riparian areas in the valleys in the dry prairie grassland region of the province, and absent (?) in the more mesic aspen parklands and southern boreal forests. Our paler western prairie populations have been named subspecies speratina.
Conservation A widespread but uncommon moth. No obvious concerns. Diet Info
No Alberta data; in adjacent Saskatchewan and Manitoba, willow (Salix sp.) is the most frequent host, with single (questionable) records of Manitoba maple (Acer negundo), Hazel (Corylus) and Cherry (Prunus) (Prentice…
No Alberta data; in adjacent Saskatchewan and Manitoba, willow (Salix sp.) is the most frequent host, with single (questionable) records of Manitoba maple (Acer negundo), Hazel (Corylus) and Cherry (Prunus) (Prentice 1962). Elsewhere poplar (Populus) and alder (Alnus) have been reported as larval hosts (Forbes 1954).
Range
New Brunswick west to the Alberta foothills, south to DC, Missouri and in the mountains to Colorado. In Alberta, it has been found most often along the valleys in the southern grasslands region, but has also been…
New Brunswick west to the Alberta foothills, south to DC, Missouri and in the mountains to Colorado. In Alberta, it has been found most often along the valleys in the southern grasslands region, but has also been collected north to Edmonton and west to Calgary.

Citation

Page Citation for Acronicta sperata

Page Citation

"Species Details - Acronicta sperata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-2863. Accessed 21 May. 2024.

Authorship

Name Anweiler, G. G.
Role species page author
Date 2003-04-07

References

Specimen Information

There are 39 specimens of this Species.

39 results plotted on map in 17 markers.
Note: Only records with latitude and longitude coordinates are plotted on map.

UASM14041 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edmonton Collected ByBowman, K. Date Collected1943-06-19

UASM24157 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, South Saskatchewan River Collected ByAnweiler, G. G.; Schmidt, B. C. Date Collected2000-05-19

UASM58032 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Edgerton Collected ByAnweiler, G. G.; Schmidt, B. C. Date Collected2004-06-01

UASM57197 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Oldman River Collected ByAnweiler, G. G. Date Collected2004-06-21

UASM57381 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Pakowki Lake Collected ByAnweiler, G. G. Date Collected2005-05-19

UASM57230 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Pakowki Lake Collected ByAnweiler, G. G. Date Collected2004-06-23

UASM57259 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Pakowki Lake Collected ByAnweiler, G. G. Date Collected2004-06-23

UASM57264 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Pakowki Lake Collected ByAnweiler, G. G. Date Collected2004-06-23

BIRD15168 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Arrowwood Collected ByBird, C. D. Date Collected2005-05-08

UASM59846 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Jenner Collected ByAnweiler, G. G. Date Collected2007-06-07

BIRD20862 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

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

BIRD20863 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

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

BIRD31738 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Alberta, Arrowwood Collected ByBird, C. D. Date Collected2009-05-29

UASM162412 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedUnited States: New York, Tompkins county, Ithaca Collected ByFranclemont, J. G. Date Collected1939-06-07

UASM162413 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, Ottawa Collected ByTroubridge, J. Date Collected2004-06-24

UASM162414 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, St. Williams Collected ByTroubridge, J. Date Collected2003-06-14

UASM162415 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, The Burnt Lands Collected ByTroubridge, J. Date Collected2003-06-07

UASM162416 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, The Burnt Lands Collected ByTroubridge, J. Date Collected2003-06-07

UASM162417 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, The Burnt Lands Collected ByTroubridge, J. Date Collected2003-06-07

UASM162418 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, Stittsville Collected ByTroubridge, J. Date Collected2003-06-20

UASM162419 - Acronicta sperata

University of Alberta E.H. Strickland Entomological Museum

Place CollectedCanada: Ontario, Stittsville Collected ByTroubridge, J. Date Collected2003-06-20

Adult Seasonal Distribution