At the western edge of its distribution, it occurs from Manitoba southward through the Great Plains of Nebraska and Iowa, south throughout most of Texas, and westward through southern New Mexico to south-eastern Arizona (Santa Cruz County).

The distribution extends south to the state of Coahuila in northern Mexico.

The medial and basal areas are minutely speckled with white.

The reniform and orbicular spots are obscure but often discernible by fine white outlines.

Adults are on wing from May to September in the northern part of the range and from April to October in Texas and Florida.