No. 21 The Yellow Sally
This is a water fly, which continues in season for four or five weeks from the middle of May. Its wings are transparent, and lie close and flat. It is sometimes called “the flat yellow.”
Imitation
Body.—Yellow mohair, ribbed with pale green silk thread.
Wings.—White pigeon wing, stained a pale greenish yellow.
Legs.—A white hackle, dyed the same color as the wings.