This species ranges from the San Joaquin Valley to central Argentina and Chile. In most places its host plant is cultivated Alfalfa (Medicago sativa)! It is only an accidental or stray species in our area. It can be told from the Mournful Dusky-Wing, E. tristis - which is common and resident - by its rather long, narrow, pointed forewing, often with a coppery-reddish cast. The shape of the forewing makes the hindwing look very broad. Multiple broods.