Marathyssa basalis (Wlk)
Female, March 3, 2008
Identification: Corvell, Moths of Eastern North America, Page 154. Similar to Dark Marathyssa, but the male antennae is bipectinate, and broader. The forewing is yellowish-brown and the overall general appearance is paler. The post-median line meets the inner margin at a more oblique angle. The caterpillar host plant is poison ivy.