Body pale ochreous to near white.
Hindwings uniformly gray. The species superficially resembles G. reticulata and some forms of G. variabilis . It can be distinguished from both by the blunt, short-spined pollex in the male and the presence of large signa in the female. In moist coniferous forest from sea level to 1500 m. It often coexists with G. variabilis and G. mitellae. Biology and systematics of Greya Busck and Tetragma n. gen.