Phthonosema tendinosaria
Scientific NamePhthonosema tendinosaria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsgrey, brown, reddish-brown
HabitatForests, woodlands
Geographic RangeEast Asia (e.g., Japan, Korea, China, Russian Far East)
Host Plantsunknown
Flight PeriodMay to August (regionally variable)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis. Larvae are typically 'loopers' or 'inchworms' that feed on the foliage of various trees and shrubs.
Identification TipsKey features include the mottled grey-brown and reddish-brown coloration with distinct, wavy dark brown lines across the wings, particularly the prominent postmedial line on the forewing. Its cryptic appearance helps it blend with tree bark or lichen.
Description
A medium-sized moth with mottled grey, brown, and reddish-brown wings, featuring prominent wavy dark lines across both forewings and hindwings, providing excellent camouflage against bark or rock.
