Aside from Montana, these moths can be found from southwestern Quebec and Vermont, west to British Columbia, and south to Arizona, Texas, and California. They overwinter as adults, hiding under loose bark, in woodpiles, and even in our homes. The adult moths are found flying in the spring and then again in late summer and fall. In their northern range, the larvae feed on snowberry.

Photo by: Pat Little on 7/26/21 in Missoula, MT