Jankowskia fuscaria
Scientific NameJankowskia fuscaria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)30
Wing Patterncryptic
Primary Colorsbrown, tan, gray
HabitatForests, woodlands, areas with deciduous trees
Geographic RangeEast Asia (e.g., Japan, Korea, China, Russian Far East)
Host PlantsQuercus, Betula, Acer, Prunus, Salix
Flight PeriodMay to September (often bivoltine)
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesUndergoes complete metamorphosis; larvae are typically twig-like (geometer caterpillars) and feed on various deciduous trees and shrubs.
Identification TipsDistinguished by its characteristic cryptic bark-like pattern, broad wings, and specific markings such as wavy transverse lines and a discal spot, which help it blend into its arboreal environment.
Description
A medium-sized moth with broad, somewhat wavy-edged wings, displaying a mottled pattern of dark brown, reddish-brown, and pale tan, resembling tree bark.
