American Dagger
Common NameAmerican Dagger
Scientific NameAcronicta americana
FamilyNoctuidae
SubfamilyAcronictinae
Wingspan (mm)52.5
Primary Colorsgrey, black, white
HabitatDeciduous forests, woodlands, suburban areas, parks
Geographic RangeEastern North America, from southern Canada south to Florida and west to Texas and Kansas
Host Plantsoak, maple, elm, birch, willow, ash, hickory, linden
Flight PeriodMay to September
Conservation Statusleast-concern
Lifecycle NotesThe larva is a distinctive, hairy caterpillar, typically yellow with black tufts and a long black 'dagger' tuft on the first abdominal segment. It pupates in a cocoon made of silk and larval hairs.
Identification TipsAdults are identified by their mottled grey pattern and specific forewing markings. The bright yellow, hairy caterpillar with black tufts and a prominent 'dagger' tuft is highly distinctive for species identification.
Description
A medium-sized moth with mottled grey forewings featuring intricate black markings, including a distinct reniform spot and wavy transverse lines, providing excellent camouflage.
