Crocus Geometer

Upperside: antennae filiform. Head pale yellow. Eyes dark brown. Tongue spiral. Thorax, abdomen, and wings pale yellow. On the posterior edges of the anterior wings are placed two faint brown streaks; one, which is smallest, being about a quarter of an inch from the shoulders, the other the same distance from the lower corners; about the same distance from the tips, on the anterior edges, is placed another very small one. Posterior wings having likewise two of these faint spots, one on the anterior, the other on the abdominal edges. Underside: sides, breast, and abdomen pale yellow. Legs brown and yellow. Wings pale yellow, with the same spots and marks as on the upper side, but more distinct. The wings are a little angulated. Wingspan nearly 2+1⁄2 inches (62 mm).