My personal favorite. I use this fly as a "pilot fly" to see what's happening on the water when there is no apparent hatch or rising fish. Works well from the beginning of the season to well into its end.
Moose Body Hair, two fibers forked
Stripped Peacock Quill
Yellow Calf Tail
Tan Synthetic Dubbing
Dun, parachute style
The only thing to be careful of is to make he body as slim as possible.