Mayfly Nymphs

Mayfly nymphs are bread and butter fly patterns for most trout rivers and also on many lakes. Mayfly nymphs including species specific patterns like PMDs, BWOs, Callibaetis and and also the classics like the Pheasant Tail and Hare's Ear Nymph. Spring through fall, when in doubt, nymphing a mayfly nymph on just about any trout stream will have you in the action.

1 2 Next →

Realistic Mayfly Nymphs for Year‑Round Trout Fishing

Mayfly nymphs are among the most reliable flies in any trout angler’s box. Trout feed on nymphs throughout the year, long before mayflies begin to hatch and long after the adults disappear from the surface. This collection brings together the most effective mayfly nymph patterns designed to imitate the natural shape, color, and behavior of real nymphs drifting in the current.

Match the Most Common Mayfly Species

From small Baetis nymphs to medium PMDs and larger drake species, mayfly nymphs come in a wide range of sizes and colors. Our Mayfly Nymphs collection includes slim profiles, segmented bodies, and natural tones that closely match the insects trout encounter daily. These patterns excel when fished dead‑drifted, under an indicator, or as part of a Euro‑nymphing setup.

Pair with Dries and Emergers for Complete Hatch Coverage

Mayfly nymphs are most effective before the hatch begins, but trout often transition to emergers and dry flies as the hatch progresses. For full coverage, explore our Mayfly Dry Flies and Mayfly Emergers collections. Using nymphs, emergers, and dries together ensures you’re prepared for every phase of mayfly activity.

Essential Patterns for All Water Types

Whether fishing fast riffles, deep runs, or slow pools, mayfly nymphs consistently produce fish. With a wide range of sizes and styles, this collection equips anglers to match natural mayflies with precision and confidence. These nymphs are indispensable for both prospecting and targeted presentations during mayfly cycles.