Brown Angle Shades

Appearance

The wingspan is 42–50 mm. Adults are on wing from late July to October.

Adult: forewing brown, sometimes shaded with green; large dark brown V-shaped patch in median area, with a small sharp tooth projecting from the costa toward the median patch; PM line thin, black, with small teeth in lower half, and sharp-angled bend in upper half near costa; subterminal line thick, dark brown, terminates at pale apical patch; outer margin scalloped; hindwing brown with darker lines and veins, and pale yellowish strip along costa.

Naming

Phlogophora periculosa Guenée, 1852
Trigonophora v-brunneum Grote, 1875

Food

Larvae feed on leaves of alder, balsam fir, cranberry, plum, and other woody plants.