Description
When it’s time to get serious about catching trout and grayling, you need a fly that imitates the most important part of the caddis fly life cycle: the pupa. This stage is the final, crucial step before the caddis fly emerges as a winged adult, and it’s a phase that often drives fish into a feeding frenzy.
The caddis pupa imitation mimics the insect as it rises from the riverbed to the water's surface. It is an active, wriggling meal, and fish often key in on these helpless, buoyant insects while ignoring everything else.
The Dual-Fly Technique: Pupae rise through the entire water column before hatching. To maximize your chances, try the "Anchor fly" technique by using a heavier pupa or emerger to get your cast down to the right depth, followed by a lighter imitation. This versatile pattern can be fished as a dropper under a dry fly, dead-drifted with a strike indicator, or swung across the current to imitate the rising motion of the natural insect. It is a universal pattern that works in almost any river where caddis are present.
The Green Powerhouse – The J:son Caddis Pupa 3 in Green is a highly specialized imitation tied on a size #14 hook. This vibrant green shade is a specific and deadly trigger, designed to mimic the "Green Caddis" or Rhyacophila species, which are a favorite food source for trout and grayling in many river systems. Its medium-to-small profile makes it an excellent choice for technical fishing when fish are being selective about both size and color.
Like all J:son flies, this pupa features an advanced anatomical design with a realistic, segmented body that curves naturally. The semi-translucent green material captures the light to simulate the internal life and air bubbles of a natural pupa as it prepares to hatch. Whether you are using it in a "Dual-Fly" setup or as a single nymph in a clear mountain stream, this size #14 Green Pupa is a must-have for any serious angler's fly box.