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 Ultimate Midge & Micro-Mayfly Match – J:son Mayfly Spent 5 Black (Hook #24) When you encounter the most demanding fish in crystal-clear water, the Black Spent #24 is often the only way to induce a take. This is our smallest spent imitation, designed to mimic the tiny black midges and micro-mayflies (like the smallest Caenis species) that blanket the water during summer dawns and dusks. At this microscopic level, the dark, needle-thin silhouette against the surface is the primary trigger for large trout feeding in slow-moving water.
Engineering a fly this small that still performs is a challenge we've met with our specialized foam construction. It stays buoyant and maintains its flat-wing profile without the need for additional floatants that might ruin its delicate appearance. We know it can be nearly impossible to thread the leader through the eye of a traditional #24 hook; therefore, we have ensured the hook eye remains at least a size #18. This allows you to use this extreme micro-pattern with confidence, knowing you can actually tie it on even when the pressure is on. The Black #24 is the definitive "problem solver" for the most technical fly fishing scenarios.
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.