Family Erebidae Hodges # 8203
Caterpillar food: many trees and shrubs – birch, alder, ash, birch, elm, hazel, hickory, oak, poplar, walnut, willow (Bugguide)
Adults can’t be told from Halysidota harrisii (Sycamore Tussock Moth) except by dissection or caterpillars and food plants, but since we’re too far north for Sycamore trees, I’m sure all these are H. tessellaris.
8/12/2009 Caterpillar eating oak leaves
6/17/2010 The cocoon spent the winter in a plastic container in the refrigerator. I took it outside in April, and the moth emerged on June 17, 2010.
6/17/2010 The cocoon after the moth had emerged