Coloration and shading as in frustulum, with the following exceptions, which are very marked and leave no room for doubt that it is entirely distinct from that species.

The peculiar black spots on the inner third of the fore wings of frustulum, are entirely wanting in this species. There is a small dark brown triangular spot acutely pointed and situated very near the costa, in line with the extra-discal row of dots, and ending on costa and outer margin of the wings. In some specimens these spots are rounded internally. A light buff-colored band crosses the wings, limiting the inner third, which is shaded heavily with chocolate-brown exteriorly. This band is nearly identical in coloration with the extra-discal one, though perhaps a trifle lighter.