This represents a half hatched nymph. A crippled and hopeless morsel for the Trout to take at will. The idea is to hang the fly in the surface film, with the tail end of the nymph shuck still attached and hanging in the water. The front end of the fly represents the half hatched winged insect, it’s looped body stuck in the top of the shuck, and its legs trailing beneath its thorax and partially opened wings. The materials you will need: