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Species Acronicta americana - American Dagger Moth - Hodges#9200

Caterpillar - Acronicta americana American Dagger Moth Caterpillar - Acronicta americana american dagger moth - Acronicta americana Caterpillar for ID.  - Acronicta americana Acronicta americana  American Dagger Moth - Acronicta americana Acronicta americana Yellow Caterpillar with Black Tufts - Ontario - Acronicta americana
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 americana (American Dagger Moth - Hodges#9200)
Hodges Number
Other Common Names
Acronycte d'Amérique - En français… Ilze V-G.
Synonyms and other taxonomic changes
Acronicta americana Harris, 1841
Apatela Americana
Common throughout the East (1)
Wingspan 50-65 mm (1)
Caterpillar to 50 mm (2 in) (2)

Caterpillar is densely covered with white or yellow hairs (early and middle instars more yellow), with pairs of diverging thin black lashes on A1 and A3 (first and third abdominal segments), a single tuft of black hairs on A8. Head smooth and shiny black. (3)
East of the Rockies (4)
Woodlands and forests, especially mesic to swampy bottomlands
Flies April to September (1)
Caterpillar seen June to October (5)
Larvae feed on leaves of alder, ash, birch, elm, hickory, maple, oak, poplar, walnut, willow (1) and other deciduous trees (4).
The largest dagger moth in the East, according to Covell. (1)
The caterpillar's hairs can cause skin irritation.
Internet References
adult images (Larry Line, Maryland)
pinned adult image (A.W. Thomas, Canadian Forest Service)
Owlet Caterpillars of Eastern North America - habitat, larva description
Works Cited
1.Field Guide to Moths of Eastern North America
Charles V. Covell, Jr. 2005.
2.Peterson First Guide to Caterpillars of North America
Amy Bartlett Wright. 1998. Houghton Mifflin Company.
3.Caterpillars of Eastern North America
David L. Wagner. 2005. Princeton University Press.
4.The Moth Book
W.J. Holland. 1968. Dover.
5.Caterpillars of Eastern Forests
David L. Wagner, Valerie Giles, Richard C. Reardon, Michael L. McManus. 1998. U.S. Dept of Agriculture, Forest Health Technology Enterprise Team.