If there is one nymph we are never without in our nymph box it is the simple maggot fly. We know what your thinking. Why would you carry a maggot pattern? The simple answer is we find large dead stuff in the water almost every season.
We learned the value of the maggot in Alaska. Decomposing salmon were everywhere. Flesh flies and maggots were staple patterns. The next season we came across a bloated moose pinned in Ripogenous Gorge on the West Branch of the Penobscot. The maggot fly ruled if you could stand the stench when the wind shifted. We've fished below dead cattle in Wyoming and Montana. Just this season we found a late winter kill deer in The Forks. Alas it was too cold for a good maggot hatch and all the fun that goes along with it.
Scud hook sizes 10-16. White larva lace. You can add weight to the hook if you wish. This is not a technique or skill for the fly fishing purist. If your one of those, ignore this post. If you're ready to go to the dark side, just follow your nose.