Species Euchlaena irraria - Least-marked Euchlaena - Hodges#6739

6739

wingspan 37-48 mm

wings powdery yellowish or brownish-gray with fine speckling; forewing has faint brown AM line and brown sinuous, usually complete PM line; dark brown shading along lower half of PM line, fading back to ground color toward outer margin; discal spots blackish, usually prominent on all wings but may be absent

[adapted from description by Charles Covell]

Nova Scotia to South Carolina, west to Missouri, north to Saskatchewan

adults fly from May to August

larvae feed on leaves of birch, dogwood, maple, meadowsweet, oak, poplar, sweet-fern

one generation per year

Confused Eusarca (Eusarca confusaria) is similar but has a straight PM line with no dark shading beyond it.

Euchlaena marginaria has a yellow PM line with yellow shading beyond it, and heavy speckling on all wings.

Moth Photographers Group - range map, photos of living and pinned adults.

iNaturalist