The Daddy Long Legs fly, also known as the Crane Fly, is a classic and effective dry fly pattern designed to imitate the natural crane fly, a common terrestrial insect often found near water. This fly features long, slender legs made from knotted tail fibers, which accurately mimic the long legs of the real insect. 

The Daddy Long Legs is particularly effective in still water and slow-moving river environments, where it can be fished on the surface to attract trout.The fly's buoyant nature allows it to float well, creating a tempting target for fish that are feeding on or near the surface. It's especially useful in late summer and early autumn when crane flies are abundant. The Daddy Long Legs can be fished on its own or as part of a dry-dropper setup, making it a versatile and reliable pattern for many fishing scenarios.