Pygoctenucha terminalis, the blue-green lichen moth, is a moth in the family Erebidae. It was described by Francis Walker in 1854. It is found in Mexico[1] and in the United States in eastern Colorado, New Mexico and southeastern Arizona.
The wingspan is about 43 mm.[2] Adults are on wing from late-May to early-August
The larvae feed on Asclepias species, including Asclepias tuberosa.[3]