Behr's Pero Moth
Common NameBehr's Pero Moth
Scientific NamePero behrensaria
FamilyGeometridae
SubfamilyEnnominae
Wingspan (mm)35
Wing Patterncryptic
Primary Colorsbrown, gray, tan
HabitatConiferous forests, woodlands, mixed forests
Geographic RangeWestern North America, from British Columbia south to California and east to Idaho and Montana
Host PlantsDouglas-fir, Western Redcedar, various pines, junipers, other conifers
Flight PeriodApril to July, sometimes a second brood in late summer/early fall
Flight Stylefluttering
Conservation Statusleast-concern
Lifecycle NotesLarvae are twig mimics, often camouflaged on their conifer host plants. They pupate in the soil or leaf litter, emerging as adults after a period of dormancy.
Identification TipsLook for the characteristic mottled brown and gray coloration, the prominent wavy postmedial and antemedial lines on the forewings, and the slightly scalloped outer wing margins. It often rests with wings held flat, blending seamlessly with bark or foliage.
Description
A medium-sized moth with mottled brown and gray forewings, featuring distinct wavy dark lines and a somewhat scalloped outer margin, providing excellent camouflage against tree bark.
