Many fishermen plan their summer fishing itinerary around the famous Ephemerella or Pale Morning Dun hatches. Streamside occurrences of this Mayfly definitely get the troutâ€™s attention as they move from feeding on the active nymphs, to emergers, then on to duns. Fish during these hatches, especially on crowded waters can become very selective and difficult to entice. The Pale Morning Dun Tube-Fly is a pattern more impressionistic of the natural dun. When the fishing becomes demanding with this mayfly many fishermen either continue to flail away or simply head to the truck calling it a day. Flies such as the Pale Morning Dun Tube-Fly allow you to step your game up and stay on the water continuing to battle.