Hindwing is slightly paler and may have pink at the base or along the inner margin. Each wing of both male and female has a faint black submedian line and a small black eyespot. Shortly after mating, females lay eggs in clusters of 5-12 at the base of pine needles. Eggs hatch in about three weeks. Young caterpillars are gregarious, with 3-5 caterpillars feeding together on the same pine needle.
Older caterpillars feed alone.
Caterpillars spin loose cocoons under the soil surface in which they pupate and overwinter. One brood from April-July. Idaho and Montana south through Wyoming, Colorado, Utah, and Nevada to Arizona and New Mexico. G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery. The moths of America north of Mexico, fasc.