My Midge Larva is a very simple tie: thread and wire. IMO, a curved nymph hook is ideal, as Midge Larvae are curved, skinny and long.
For a fantastic rundown on tying Midge Larvae, a great Tim Flagler video is at the bottom.
You may not like tying or fishing #20 (or smaller) flies. But, these flies work like a charm. They nearly always deliver for me. At some point, trout get tired of being hooked on a Woolly Bugger and react accordingly.