Polychrysia morigera, the disjunct looper, is a moth of the family Noctuidae. The species was first described by Henry Edwards in 1886. In the east of North America, it is found in the Mississippi, Missouri, and Ohio river valleys from Pennsylvania to Tennessee. In the Rocky Mountains it is found from Montana to Colorado and on the west coast it occurs from Oregon to northern California. It is the rarest of the North American Plusiinae species.