Sub-Merger (Green Drake)

Note 1: 
Hare's ear Antron dubbed loose and bulky from mid point to just behind
the hook eye, leaving room for hackle and tying off.

Note 2: 
The sub-merger is tied in two halves. The tail end creates the illusion
of being the spent shuck that fishes submerged.  The front half is
dressed with your own pattern colorations to represent the various
emerging may flies you encounter.