Adult: forewing white with three broad metallic bronze bands that may be tinted with green, orange, or yellow: a slightly curved basal band, a band near mid-wing that splits into a Y shape before reaching the costa, and a subterminal band that curves from the inner margin toward the apex; labial palps white; face, head, and thorax whitish or pale yellow; antennae with white and brown rings; abdomen brown or grayish; legs brownish-white, darker near joints; hindwing brown to gray, slender, pointed, with wide fringe around perimeter
Larva: body green or pinkish; head shiny dark brown, cervical shield brown indistinctly marked with black
scattered distribution in North America: reported from California, Colorado, Michigan, New Hampshire, Alberta, British Columbia, Ontario, and Saskatchewan - and probably occurs elsewhere
common throughout Eurasia in appropriate habitat
also occurs in Mexico
deciduous or mixed woods containing alder and/or birch
adults may appear as early as April but usually fly from June to September, with peak numbers in July
larvae in March and April
pupae in May and June
larvae feed on catkins and shoots of alder and birch
one generation per year; overwinters as a larva in a shoot or male catkin; inhabited catkins are distorted and frass is ejected through a hole in the side; in late March or April, larva descends on a silken thread to pupate under bark, where many sometimes congregate, and remains there several weeks before pupating; pupal stage lasts four to six weeks
North American specimens are slightly larger than the European ones, and the head and thorax are paler.
Adults fly in afternoon sunshine and also come to light.
Beadle, D. & S. Leckie 2012. Peterson Field Guide to Moths of Northeastern North America. Houghton Mifflin. p.42-43 (preview
Busck, A. 1907. Revision of the American moths of the genus Argyresthia
. Proceedings of the United States National Museum 32: 12-13 (2)