Description
When trout feed on Spent Spinners, they do it with comfort. These dead or dying mayflies will not fly away, making them an easy, high-protein meal. The rise is typically slow and methodical, often in a classic "head-and-tail" style. Many anglers find this stage difficult, as fish become extremely selective when hundreds of spent spinners blanket the surface.
Our Commitment: Perfect Imitation To succeed and perhaps hook the fish of a lifetime, you must observe where the fish feeds and ensure your presentation is flawless. But just as important is the imitation itself. Because the insect is stationary, the fish has plenty of time to scrutinize your fly.
Our commitment is to provide imitations of the real insect where the fly has the right shape, size, proportions, and colours, and, not least, leaves the correct print on the surface of the water. This imitation of an adult mayfly in the Spent stage possesses all the right properties. It looks natural, feels natural, and fish will eat it.
Our commitment is to provide imitations of the real insect where the fly has the right shape, size, proportions, and colours, and, not least, leaves the correct print on the surface of the water. This imitation of an adult mayfly in the Spent stage possesses all the right properties. It looks natural, feels natural, and fish will eat it.
The Bright Micro-Spinner – J:son Mayfly Spent 4 Sulphur (Hook #22) The Sulphur Spent #22 is a specialized pattern designed to match the smallest yellow and pale-colored mayflies. Often found on spring creeks and technical rivers, these "micro-sulphurs" or small yellow duns create a distinct visual trigger when they fall spent on the water. The delicate yellow-orange tone of the Sulphur spinner is perfectly captured in this tiny imitation, offering a bright but natural silhouette that stands out even during complex hatches.
Crafting a realistic fly in size #22 requires a balance of buoyancy and delicacy. J:son’s signature foam body ensures this fly sits flush in the surface film, mimicking the exact footprint of a dying spinner. We know it can be difficult to thread the leader through the eye of very small hooks; therefore, even though the hook itself is a #22, we have ensured the hook eye remains at least a size #18. This allows for quick, stress-free fly changes during the short, intense windows when these pale spinners are most active.
Correct Surface Print: The imitation creates the precise flat-winged silhouette on the water film that triggers even the most selective fish.
Optimal Realism: Designed to mimic the spent, exhausted mayfly lying flush in the surface film after egg-laying.
High Quality: Exact proportions and biological colours that perfectly match the natural insect’s final life stage.
Pro Tip: Use a Swivel for Perfect Presentation Because J:son realistic flies are designed with anatomically correct wings, they act like small propellers in the air during casting. This can cause your leader to twist, leading to tangles and poor presentation.
To prevent this and ensure your fly lands perfectly every time, we strongly recommend using a J:son Anti-Twist Swivel. This simple addition will eliminate line twist and let you focus entirely on the fish.