Nymph · Emerger · Trout · Intermediate · 1 version
Reference Recipe
Hook Standard wet/nymph hook (1XL), #12-16
Thread Brown 8/0 (70 denier)
Materials
Antron/sparkle yarn (underbody dubbing) Brown dubbing (1 pinch)
Antron yarn (overbody sheath) Clear/amber antron yarn (1 small bunch)
Fur dubbing (thorax) Brown dubbing (1 pinch)
Grouse or partridge fibers (legs/head) Brown/mottled grouse or partridge fibers (1 small bunch)
How to tie it
Start the thread and dub a plump underbody of brown sparkle yarn over the back two-thirds of the shank to imitate the gas-filled pupal body.
Split a small bunch of clear/amber Antron and tie half on top and half beneath the body, then draw the fibers back around the abdomen as a loose translucent sheath and bind them at the front. This trapped-air bubble is the defining feature of LaFontaine's sparkle pupa.
Trim the sheath fibers so a short veil trails just past the bend.
Dub a brown fur thorax in front of the abdomen.
Tie in a sparse bunch of grouse or partridge fibers over the top as legs/emerging wing, reaching to about the hook point.