Spring and fall forms are smaller and less conspicuously marked.
Hibernation is by third-stage caterpillars.
Flower nectar of many plants. Alaska south through central and southeast Canada, all of conterminous United states except much of California, south Texas, and most of Florida. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. Opler, P. A. and G. O. Krizek. Butterflies east of the Great Plains.