Description
The first stage in the life cycle of a caddis fly is the larva. Found in both still and moving waters, these insects are a constant and vital food source for fish. Depending on the species, caddis larvae are either case-builders, net-spinners, or free-living.
Case-building larvae construct protective homes from sand, stones, or plant material. As they grow and move between cases, they become highly vulnerable. Net-building larvae use silk to create food-catching structures, while free-living larvae move openly across the bottom.
Most often, you will find these larvae on the bottom; they only accidentally drift downstream in moving water or when searching for new feeding grounds. Those living in still water move slowly across the lake bed. To be successful, it is necessary to fish your imitations as close to the bottom as possible. Many seasoned anglers consider a realistic caddis larva imitation to be among the best, if not the best, trout flies available.
The Riverbed Classic – J:son Caddis Larva 2 Green (#8) The J:son Caddis Larva 2 in Green is an incredibly versatile imitation, tied on a size #8 hook to match a wide variety of medium-to-large caddis species. The vibrant green coloration is a proven winner, specifically designed to mimic the "Rhyacophila" (free-living green larvae) that are so prevalent in rocky river environments.
Using J:son’s anatomical design, this larva features a segmented body and a lifelike translucency that becomes even more apparent when submerged. Fished near the bottom, the #8 Green Larva acts as a high-visibility target that triggers aggressive takes from trout and grayling. Whether you are using a traditional nymphing technique or a more modern Euro-nymphing style, this fly’s realistic profile and organic movement make it a must-have for any technical fly fisher looking to exploit the underwater diet of the fish.