It is most common from southern British Columbia to southern Saskatchewan and south to the border with Mexico. This species is a generalist feeding on a wide variety of herbaceous plants, but appears to prefer legumes (Fabaceae) (alfalfa).
Adults frequently visit flowers for nectar in open meadow habitats during the day. They are most commonly collected during the night and come readily to lights. They have been collected at almost all times of the year, beginning in February and extending to the end of November.
It is mostly found in May, late July and late September.
This is a Lophocampa maculata, the Mottled tussock moth.
It ranges across southern Canada, western US, south in Appalachians to South Carolina, Kentucky. It likes deciduous forests. Adults (usually) fly from May to July and the tufted caterpillars are from July to September. They prefer leaves of poplar and willow, but also feed on alder, basswood, birch, maple, oak.
Beautiful mosaic on the lower border of its wings.