Here is the fly pattern sheet for the SLS Soft Hackle Emerger.
Materials
Hook:
TMC 3769 or Dai Riki 710, #14
Thread:
Pearsall’s silk – orange or gold
Tail:
Wood Duck
Body:
Working thread
Thorax:
SLS Zelon dubbing
Wing:
Hungarian Partridge dyed orange or yellow or Golden Plover
Here is a video from Blue Ribbon Flies:
Imitates the Heptagenia mayfly found in the waters of Slough, Lamar, and Soda Butte in the NE corner of Yellowstone Park during August and September.