This nocturnal, medium-sized moth is widespread and common throughout much of the Pacific Northwest as far north as southern British Columbia. In western Montana it can be found in mixed hardwood-conifer forests and spruce-fir forests at higher elevations and in drier ponderosa pine forests at middle elevations. It flies during early spring, usually beginning in early March, with stragglers through late May. Larvae are very broad generalists and will feed on many kinds of hardwoods and conifers (Pinaceae).  
Photo by Lisa Winn Cloo on 5/12/20 in Missoula, MT