Frosted Dagger
Common NameFrosted Dagger
Scientific NameAcronicta impressa
FamilyNoctuidae
SubfamilyAcronictinae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsgray, white, black
HabitatDeciduous and mixed forests, woodlands, riparian areas, suburban gardens
Geographic RangeNorth America (widespread across Canada and the United States)
Host Plantswillow, poplar, birch, alder, cherry, apple
Flight PeriodMay to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are hairy, often with tufts, and feed on a variety of deciduous trees and shrubs. They pupate in a cocoon, often incorporating host plant material.
Identification TipsKey features include the frosted gray appearance and the distinct black 'dagger' marks on the forewings, particularly the one pointing towards the wing base and another near the reniform spot.
Description
A medium-sized moth with mottled gray and white forewings, featuring prominent black 'dagger' shaped markings near the base and along the costa. The hindwings are typically paler gray.
