Giant Gray Moth
Common NameGiant Gray Moth
Scientific NameAscotis cognataria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)50
Wing Patterncryptic
Primary Colorslight gray, dark gray, black
HabitatForests, woodlands, suburban areas, gardens
Geographic RangeNorth America (eastern and central)
Host Plantsbirch, oak, maple, willow, cherry, apple
Flight PeriodMay to September
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis. Larvae are 'loopers' or 'inchworms' that feed on a wide variety of deciduous trees and shrubs. Pupation occurs in the soil or leaf litter.
Identification TipsLook for its relatively large size for a geometer moth, the distinctive wavy and mottled gray and black pattern resembling lichen or bark, and the feathery antennae (especially in males). It typically rests with wings spread flat.
Description
A large, cryptically patterned moth with broad, wavy-edged wings displaying intricate mottled patterns of light and dark gray, black lines, and white patches, providing excellent camouflage against tree bark.
