River-birch
Guides
Acronicta betulae
birch dagger moth, River Birch Dagger
Acronicta betulae, commonly known as the birch dagger moth or River Birch Dagger, is a noctuid moth native to eastern North America. Adults are characterized by a distinctive wing appearance described as resembling two layers on the forewings. The species exhibits bivoltine flight periods in spring and late summer. Larvae are specialized feeders on birch leaves, with Betula nigra (river birch) documented as a primary host.