The Spent Hackled Mayfly combines a flat spent-wing outline with supporting hackle for visibility and flotation. It represents an adult mayfly that has completed its brief aerial stage and returned to the surface.
Use it during spinner falls or when spent mayflies are collecting in seams and back eddies. Fish it on a drag-free drift, keeping the body low while using the hackle only to support the pattern. This is the sort of dependable dry that can turn a quiet rise into a memorable take.