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 High-Floating Giant – The J:son Caddis Adult 1 in Ash Grey is a large-profile dry fly, measuring approximately 25 mm, designed to mimic the most substantial caddis species such as the Great Red Sedge (Phryganea grandis). This specific model is tied on a size #12 hook, offering a perfect balance between a large, attractive silhouette and a needle-sharp, slightly smaller hook for superior hooking capabilities.
This fly is a masterpiece of functional realism. It features J:son’s unique air-filled wings and a segmental foam body, making it virtually unsinkable even in heavy pocket water or when dragged across the surface. The Ash Grey color provides a natural, mottled contrast that is highly visible to fish against a bright sky. Whether you are dead-drifting it during a massive hatch or using the "skating" technique to create a wake, this 25 mm Ash Grey Caddis is built to lure the largest trout and grayling to the surface.