Bead Head Caddis Sparkle Pupa, Tan
When caddis are ready to hatch they leave their pupal cocoon and get ready for the ascent to the surface of the water. Most species exude gases from their newly formed adult body. This gas is trapped by the old pupal skin which still surrounds them. This process starts to separate the adult insect from this pupal shuck. The shuck is inflated forming a bubble or balloon around parts of the adult insect. The gases within this bubble reflects light. Each caddis pupa becomes a reflective buoyant orb as it swims and rises to the surface. Gary LaFontaine in his revolutionary book "Caddisflies," noted that these reflective qualities made the caddis pupa highly visible to trout. The bubble becomes a key target for feeding fish. His answer was the Sparkle Pupa series of flies. They are tied with a bubble of Antron fibers around the body to trap air and reflect light much the same as the real insect. The Sparkle Pupa series of flies revolutionized fly fishing during a number of important caddis hatches and are some of the most important patterns to have in your box when fishing Western streams.