Spinner Mayfly Pattern

The fly Mayfly spinner pattern is designed to replicate the appearance and behavior of these adult insects. The term “spinner” is the common name for the final stage in the mayfly's life cycle. The mayfly “spinner fall” is when egg-laying females return to the water to deposit their eggs by dipping the egg sack on the underside of their tail into the water. Male and female mayflies gather in large swarms above the water flying back and forth in a figure-eight. Eventually, they tire and descend onto the water as what we call, “spinners.” The fly is tied to float on the water's surface, imitating the spent or dying insects that have already laid their eggs and are drifting downstream.

Carry a few larger sizes 10-12 for evening spinner falls.