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For the United States & Canada
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Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events


Species Acronicta grisea - Gray Dagger - Hodges#9212

Gray Dagger - Acronicta grisea Gray Dagger Moth Caterpillar - Acronicta grisea Unknown Caterpillar - Acronicta grisea for Wyoming..June - Acronicta grisea Acronicta grisea These plain Acronicta-like moths frustrate us! - Acronicta grisea Noctuidae: Acronicta grisea  - Acronicta grisea Orange Caterpillar Jasper - Acronicta grisea
Show images of: caterpillars · adults · both
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Lepidoptera (Butterflies and Moths)
Superfamily Noctuoidea (Owlet Moths and kin)
Family Noctuidae (Owlet Moths)
Subfamily Acronictinae
Genus Acronicta (Dagger Moths)
Species grisea (Gray Dagger - Hodges#9212)
Hodges Number
wingspan 30-40 mm
forewing dark gray with black basal and anal margin dashes; postmedial line with sharply-dentate margin
hindwing white
coast to coast in southern Canada and northern United States
adults fly in midsummer
larvae feed on leaves of alder (Alnus), apple, birch, elm, poplar, and willow (Salix)
Internet References
pinned adult image and other info (Jeff Miller, Macromoths of Northwest Forests, USGS)
pinned adult image (A.W. Thomas, Canadian Forest Service)
pinned adult image (John Glaser, Maryland)
pinned adult image (G.G. Anweiler, U. of Alberta)