The Wing Atlas
Patched Leaf Moth

Patched Leaf Moth

Common NamePatched Leaf Moth
Scientific NamePhyllodesma americana
FamilyLasiocampidae
SubfamilyGastropachinae
Wingspan (mm)40
Wing Patterncryptic
Primary Colorsbrown, reddish-brown, tan
HabitatDeciduous and mixed forests, woodlands, suburban areas
Geographic RangeEastern and central North America
Host Plantsoak, birch, maple, cherry, willow, aspen
Flight PeriodMay to August
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are hairy and feed on various deciduous trees and shrubs. They pupate in a silken cocoon, often incorporating host plant material.
Identification TipsLook for the distinctive wavy dark postmedial line on the forewings and the overall mottled brown, leaf-like appearance. Often rests with wings held in a tent-like fashion, enhancing its dead leaf mimicry.

Description

A medium-sized, robust moth with mottled reddish-brown to tan wings, featuring a prominent wavy dark brown line across the forewings. Its cryptic coloration allows it to blend seamlessly with dead leaves.

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