Just as with the midge pupae, the adult midge is of great importance to both fish and fly fisher. Especially so early and late in the season when a large hatch can bring good sized fish to the surface.
J:sons imitation of an adult midge also works great to imitate a large number of other small insects that fish feed on, including micro caddis. Often fish will turn selective during a midge hatch and its important to always keep imitations of both the pupae and the adult midge in your fly box. Remember to approach a fish with ease that is feeding on adult midges. Observe and be patient.