Original has a poly downwing but I prefer the upright position for better visibility. Tied here as a washed out Adams; change color/size to suit your needs.

hook - WFC Model 3 #12
thread - Uni 8/0 tan
shuck - Congo Hair shiner tan
tail - grizzly
body - biot tan
pfd - 2mm foam tan
wing - Congo Hair white
hackle - grizzly/light ginger

Regards,
Scott