Ash-grey Looper
Common NameAsh-grey Looper
Scientific NameSemiothisa cinerearia
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)30
Wing Patterncryptic
Primary Colorsbrown, grey, tan
HabitatDeciduous woodlands, forests, and areas with host trees
Geographic RangeEastern and central North America, including much of the United States and parts of Canada
Host Plantsoak, maple, birch, willow, cherry
Flight PeriodMay to September (often two broods)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis: egg, larva (looper caterpillar), pupa, and adult. Larvae feed on various deciduous trees and shrubs.
Identification TipsKey features include the mottled grey-brown coloration, the prominent jagged dark postmedial line on the forewing, and a small dark discal spot. The overall appearance provides excellent camouflage against tree bark.
Description
A medium-sized moth with mottled grey-brown wings, featuring a distinctive jagged or wavy dark postmedial line across the forewings and a small dark discal spot.
