Large moth with a 3- to 6-inch wingspan. Body fat and furry. Wings yellowish brown, with a black and white line paralleling the back edge of each wing. Forewing has a yellow-rimmed eyespot. Hindwing has a larger eyespot, rimmed in yellow, blue and black.

The illustrated moth is a female. Males have smaller bodies, but large feathery anetnnae.

Caterpillar is fat, up to 3 inches long, and green,with a yellow-rimmed brown face and yellow stripes on the body. Adjacent to each stripe is a red and yellow breathing hole. It is not picky, but will eat leaves of a variety of trees.

A magnificent native of east of the Rockies, from Canada to Mexico. Nocturnal, so rarely seen, but may occasionally be encountered flying to lights or resting in the daytime. In Wildwood, look in the moth hangout behind the restroom

Named after one of the Cyclops, one-eyed giants of Greek legend, because of its conspicuous rear eyespots.