I developed this fly about ten years ago to match the almost clear Mysis shrimp in the Frying Pan River. The egg yarn becomes very milky when wet and mimics the natural like no other material I’ve found. I have tried many types of dubbing for the thorax but have always returned to my original egg yarn dubbing as it is not shiny and has a real life like appearance in the water. The rubber leg eyes add a touch of realism and are so easy they’re hard to pass up. The Charlie’s Mysis is very durable, amazingly simple to tie, uses readily available materials and works better than live bait. This fly doesn’t look very impressive in the hand but is the best pattern I’ve ever found for tough trout in Mysis rivers. Others agree with this fact also, as it has been the top Mysis pattern in all the shops I’ve ever tied it for. I guarantee this fly works.
Hook: TMC 9300 #18
Thread: 8/0 White
Abdomen: White Egg Yarn,
Thorax: White Egg Yarn cut and mixed into dubbing.
Eyes: Small Round Rubber Legs, black.
Take a clump of white egg yarn and cut it into 1/8th to 1/4-inch lengths.
Put the cut yarn into the dubbing blender and mix it. Reserve the dubbing to the side for the time being.
Cut another four to five inch length of egg yarn. Tease a few fibers from the side of the clump and begin to draw them from the clump.
Twist this clump of fibers as you pull it from the main clump by rolling the end between your thumb and index finger.
Take the new strand of yarn and continue twisting it until it becomes somewhat of a unified cord.
Measure this strand of yarn against the hook shank. Tie it in at the bend so the abdomen portion extends at least three shank lengths beyond the bend. Wrap forward over the butt end to the fifty percent point on the hook and clip the excess yarn.
Dub the thread with the egg yarn dubbing you prepared earlier. Wrap the dubbing around the hook forming a slight taper from the bend to one eye length behind the eye. Keep the body sparse.
Tie in a single strand of small, black, round rubber leg material, using figure eight or X-wraps, to form the eyes. Essentially, you are tying the rubber leg in like a spinner wing.
Trim the ends of the rubber leg material close to the hook on either side, leaving a small black dot on each side.
Whip finish behind the eyes and then pick out the dubbing on the bottom of the fly with a Barr’s Dubbing Teaser.
Trim any stray dubbing fibers from the top of the thorax. You want the fly to be flat across the top of the shank.
Trim the end of the abdomen so that it is equal to two hook shanks. Now you’re done