Large Thorn
Common NameLarge Thorn
Scientific NameEnnomos autumnaria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)45
Wing Patternspotted
Primary Colorsyellow, orange, brown
HabitatWoodlands, parks, gardens, hedgerows
Geographic RangeEurope, parts of Asia
Host Plantsoak, birch, elm, hawthorn, sallow, blackthorn
Flight PeriodAugust to October
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesThe larvae are 'loopers' or 'inchworms' that feed on various deciduous trees and shrubs. Pupation occurs in a cocoon, often overwintering.
Identification TipsKey features include the bright yellow-orange coloration, numerous dark speckles across all wings, and the prominently jagged or scalloped outer edges of both forewings and hindwings.
Description
A medium-sized moth with bright yellow to orange-yellow wings, heavily speckled with dark brown spots, and distinctively scalloped or toothed wing margins.
