Dorsey's Mercury Black Beauty

Pat Dorsey developed the Mercury Black Beauty in the early 90s. It was designed to imitate the midge pupae found in the rivers being fed by deep, bottom-release western reservoirs; rivers such as the Blue and South Platte. Although, this pattern works everywhere. The glass bead in the Mercury series of fly patterns represents the gas bubble that the pupae possess in their thorax region during the emergence phase of their lifecycle. Use size 18 and 20's in the spring and 22 and 24's in the winter months. Size 20.