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 Egg-Layer Imitation – The J:son Caddis Adult 3 in Ash Grey / Pumpkin Orange is a highly specialized dry fly with a 17 mm profile, tied on a size #18 hook. This specific color pattern is designed to mimic egg-laying females or species with high-contrast bodies. The neutral Ash Grey wings provide a realistic silhouette against the sky, while the "Pumpkin Orange" body acts as a powerful visual trigger, simulating the vibrant egg sacs that often drive trout and grayling into a feeding frenzy.
Crafted with J:son’s innovative air-filled wings and a buoyant foam body, this fly is built to stay high in the surface film. Its unsinkable design allows you to fish it actively—skating it across the surface to create that irresistible V-wake—without it drowning. This #18 pattern is a technical essential for the angler who wants to "match the hatch" with extreme precision when the fish are focused on specific, colorful life stages of the caddis fly.