Key features

• Coloration:  Has predominantly earthtones with crescent-like markings and a vertical line in the middle of each wing.  The vertical stripe has 3 color layers: black, white, reddish-orange (unlike the Columbia Moth which the vertical line is missing the reddish-orange layer).
• Shape:  Rounded wing tips, feathery antennae
• Wingspan: 11-15 cm, the second largest moth in North America

When and where to find them

• Flight period in our area: late May through July potentially
• Activity period: NOCTURNAL
• Host plant tree/shrubs:  Maples, Cherries, Plum, Birch, Alder, Dogwood, Willow

Links to more photos of this species

Butterflies and Moths of North America Flickr pool

BugGuide.net

Bugwood Network images

Kirby Wolfe photo collection

Links to more information about this species

Enature

Natureworks

Iowa State Univ. Insect Info

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.