SD
RECIPE:

Hook: Dai-Riki 300 #14 & #16
Thread: Uni-Thread 8/0 Olive Dun
Undertail: Z-lon Amber or CDC Gold/ Amber
Tail: Wood Duck Flank Fibers
Abdomen: Goose or Turkey Biot Olive
Thorax: Dubbing Dark Olive
Wing: Snowshoe Rabbit Dark Dun
Hackle: Saddle or Cape Hackle Grizzly/Olive
Even thought this fly rides low in the surface film, it is an extremely visible fly for the fisherman. And by changing material color or substituting different materials it is an emerger pattern that can imitate the many categories of mayflies.