J:son Stonefly Adult 4 Yellow #18 vingmaterial universel The caddis pupa imitation mimics

The caddis pupa imitation mimics the insect as it rises from the riverbed to the water's surface

while free-living larvae move openly across the bottom

resulting in bulky flies and hours of tedious work

The integrated tungsten weight is concentrated to pull this large fly down quickly

fine leader (5X or 6X)

J:son Stonefly Adult 4 Yellow #18 vingmaterial universel The caddis pupa imitation mimicsStoneflies: The All Season Fly for Serious Anglers Found in clean, moving waters all over the world, the stonefly is a cornerstone of a trout's diet. No matter where you're casting a linefrom the freestone rivers of the American West to the pristine streams of Scandinavia or New Zealandthese insects are a constant and reliable food source. Often called the "year round fly," stoneflies are active throughout all four seasons. This makes them a critical