Key features

• Coloration: Body and wings mainly brown.  Wings have crescent-like markings in the middle and a vertical stripe.  The vertical stripe has 2 color layers: black and white (unlike the Cecropia Moth in which the vertical line also has a reddish-orange layer).
• Shape:  Rounded wing tips, feathery antennae
• Wingspan: 8-10 cm
• Similar species: Cecropia Moth

When and where to find them

• Flight period in our area: late May through June potentially
• Activity period: NOCTURNAL
• Host plant tree/shrubs: Tamarack/Larch

Links to more photos of this species

Butterflies and Moths of North America Flickr pool

BugGuide.net

Kirby Wolfe photo collection

Links to more information about this species

BugGuide.net

Forest Pests

World Field Guide

Sources
Tuskes, P.M., J.P. Tuttle, M.M. Collins. (1996) The Wild Silk Moths of North America: A Natural History of the Saturniidae of the United States and Canada. Cornell University Press. Ithaca, NY.
Covell, C.V. (2005) A Field Guide to Moths of Eastern North America. Virginia Museum of Natural History. Martinsville, VA.