Adults are butterfly-like but have stout, hairy bodies and feathery antennae. The body is red with a white “collar” and white bands on the abdomen. Seen from above, the overall color of the wings is dark brown or gray, with a reddish patch at the base of each forewing. At roughly the center of each of the four wings is a reddish-rimmed, whitish crescent. The postmedian line (the bold line that runs parallel to the outer edge of the wings) is lined with red on its outer margin.
Larvae are large and bluish-green. At the top of the second and third thoracic segments there are two round, reddish-orange tubercles with black points. Atop the abdominal segments there is a double row of yellow tubercles. Along the sides are rows of blue tubercles.