Imitates a salmonfly nymph. This fly is less realistic than the Kaufmanns Stonefly, but it is much easier to tie (but not cheaper to buy; go figure). Where the current is fast, trout don't get a good enough look to care how precise your imitation is. In slower water, however, the Kauffmanns Stonefly is a better choice.
Like all the big stonefly nymphs, this fly must be fished on the bottom. So weight it heavily under the body, then flatten the weight with pliers. For extra weight, put on a beadhead.
Some tyers use white rubber for the legs. This works in some rivers, but not in others. In my experience, the white rubber is a definite turn-off to trout in the Deschutes River. Some tyers finish the head with red floss or sparkle chenile. I find that can work well in the spring, but doesn't seem as effective later in the season.
How to Fish
HOOK: 5263, sizes 2-8; heavily weighted
ANTENNAE: Black rubber
TAIL: Black rubber
ABDOMEN: Black chenille