 Adults of this subspecies have been collected from May to July and September to November.The species name is derived from the Latin dorsualis (meaning of the back, dorsal) in reference to the large, dark brown to fuscous spot present along the dorsal margin of the forewing.The subspecies name "fasciata" is derived from the Latin "fasciatus" (meaning banded) in reference to the prominent, dark brown band extending obliquely across the forewing.