Description
Mayfly Nymphs – Life Below the Surface
Mayfly nymphs are the engine of the river and lake ecosystem. They are active year-round and represent a constant, reliable food source for trout and grayling from early spring to late autumn. To fish a mayfly nymph successfully, you must understand their behavior. They are categorized into three main types: Digging, Swimming, and Clinging nymphs, each adapted to specific environments.
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Digging Nymphs: Found in lakes and slow-moving river sections with soft or sandy bottoms. These include some of the giants, like the Green Drake (Ephemera danica).
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Swimming Nymphs: Agile and active, these are found in both still and moving water. They are often drift-feeders, like the Claret Dun (Leptophlebia).
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Clinging Nymphs: The "bodybuilders" of the mayfly world. Short, compact, and powerful, they live on rocks in the roughest currents, like the Yellow May Dun (Heptagenia).
Our Commitment: Anatomical Accuracy & Performance Since mayfly nymphs spend most of their lives tucked away near the bottom, they only become truly vulnerable when they lose their grip, drift to find food, or begin their journey to the surface to hatch. This is when the fish strike.
Our commitment is to provide imitations that match the specific silhouette and behavior of these three categories. By using J:son’s unique materials, we create nymphs with the correct proportions, lifelike legs, and balanced weight.
The Versatile Mid-Size Swimmer – J:son Mayfly Nymph 2 Olive Brown (Hook #6) The Olive Brown Nymph 2 is a highly effective imitation of mid-sized swimming nymphs that are found in almost all water types. Its deep olive-brown tone provides a natural and subtle profile that mimics nymphs living among rocks, debris, or aquatic vegetation. In many river systems, this color is the "gold standard" for matching the natural nymphs that trout and grayling feed on daily.
Tied on a strong size #6 hook, this fly offers the perfect balance of durability and realism. J:son’s signature anatomical design includes a segmented body and lifelike legs that create a convincing presence in the water. Whether you are fishing it deep on a dead-drift or using a slow, pulsating retrieve to mimic an active swimmer, the Olive Brown Nymph 2 on a #6 hook is a reliable and high-performing tool for any serious angler.