Description
Master the Surface Action
Adult caddis flies are a cornerstone of fly fishing, found in both still and moving water across the globe. They are most commonly seen on the surface during two critical moments: when they first hatch and when the females return to lay their eggs.
Unlike mayflies that often float passively, adult caddis are known for their frantic movement. When hatching or depositing eggs, they skitter across the water with impressive speed, creating a V-shaped wake that looks like a small racing boat. This "skating" motion often triggers explosive, aggressive rises from trout and grayling. While a newly hatched caddis is a tempting target, an egg-laying female—often carrying a visible egg sac—is a high-protein prize that large fish will move great distances to intercept.
How to fish the J:son Adult Caddis:
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Dead Drift: Cast upstream and let the fly float naturally over rising fish.
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The "Skating" Technique: Cast across or slightly downstream and use the rod tip to make the fly twitch or "skitter" across the surface to trigger an attack.
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The Lift: Just before the end of the drift, let the current tension lift the fly off the water, imitating a caddis taking flight.
The Versatile Hatch-Matcher – The J:son Caddis Adult 2 in Ash Grey is a highly versatile dry fly with a 21 mm profile, meticulously tied on a size #14 hook. This size is the "sweet spot" for many anglers, as it perfectly mimics a vast range of medium-sized caddis species found in both rivers and lakes. The Ash Grey color is a superb choice for matching the mottled, neutral tones of natural sedges, providing a lifelike silhouette that fish trust in clear water.
Built for performance, this fly features J:son’s innovative air-filled wings and a flexible foam body, ensuring it remains high and dry even after multiple takes. Its design allows it to be fished with a variety of techniques—from a subtle dead-drift to a high-speed "skating" retrieve. If you are looking for a reliable, unsinkable imitation that covers the majority of caddis hatches throughout the season, the 21 mm Ash Grey Caddis is an essential addition to your fly box.