Family Erebidae Hodges # 8171.1
Caterpillar foods: reared in captivity on wild lettuce (Lactuca) (Bugguide)
Difficult to separate from A. nais and A. phalerata. The main differences are: black costal margin; male hindwings pale orange-yellow, female hindwings pale orange yellow or pink; male ptagiae unmarked yellowish, female ptagiae black edged with yellow (Moths of North Dakota)
8/16/2013 probable ID confirmed by Les Ferge
