The wingspan is 35 to 41 mm. Upperside of forewing is dark on the basal half and lighter on the outer half, with a distinct orange-brown patch at the end of the cell. Male has a costal fold containing yellow scent scales; female has a patch of scent scales on the 7th abdominal segment.
Adults feed on nectar from flowers of blackberry, white sweet clover, dogbane, sunflower, crimson clover and probably others. Adults are on wing from late April to early June and again from July to August.