Wingspan: 32 - 42 mm
The forewing of Olceclostera angelica is scalloped along the apical edge, and each has two translucent "window" spots near the apex. The furry structures on the forelegs helps disperse the moth's sexual pheromones.
The species is found in nearly all the eastern states of the U.S., and occasionally west to the Great Plains states. In Canada there are a few records from Quebec, and many from Ontario.
The caterpillars of the angel feed on lilac (Syringa spp.), also on ash (Fraxinus spp.).
Photo data (upper photo): 13 July 2005. Ruraldale, Upshur County, West Virginia.
Photo data (bottom photo): undated, Ruraldale, West Virginia. Circa 1989 on Kodacolor film.