Fishing Pale Morning Duns is a rite of summer. Many fly fishermen arrange their schedules around this prolific hatch. The Pale Morning Dun Humpback Emerger imitates the important transitional stage between Emerger and Dun. The PMD Humpback Emerger, designed by Utah fly fishing guide, Jake Ricks, has proven itself to be an effective imitation for the critical stage just before hatching. It works wonders on picky fish when fished just below the surface or as a dropper off of a dry fly.