The RS2, a very effective pattern and a favorite of many an angler. It can be fished as a nymph, makes an excellent emerger pattern and can even be fished like a dry. It was created over forty years ago by Rim Chung. The RS2 stands for “Rim's Semblance 2” and will imitate a midge or mayfly. Since the original creation, which was tied with beaver fur for dubbing and saddle hackle for the wings, there has been many variations of this pattern.
Vary the pattern by changing the color, using different materials for the tail / wing, forgoing the bead, etc. But, despite the variations, what all RS2 flies have in common is their profile.
HOOK: Any dry fly hook #18 – 24
DUBBING: Dry fly dubbing
WING AND TAIL: Antron
NOTE: After gathering your materials, prep the antron. Gather a small bunch of antron and burn one end to seal them together. This will keep the antron together and allow you to tie multiple flies with that one bunch.
Step 1: Place the bead on the hook.
Step 2: Make smooth, even wraps on the hook shank.
Step 3: Tie in the antron bunch with the burned / sealed end toward the front of the hook.
Step 4: Apply dubbing to the thread.
Step 5: Wrap the dubbing on the hook over the antron, forming a tapered body all the way up to behind the bead.
Step 6: After dubbing up to the bead, pull the antron back, then proceed to add dubbing on top. Clip t he antron to desired length.
Step 7: Whip finish the fly.