Larry, the one I use looks like this:

http://troutangler.com/imagesprod/flies/fly%20058.gif


Except there is much less tuft below the parachute ( and it's a kind of
brown reddish - it's also much finer). Also, it's much longer with a
bright yellow body that is a good bit skinnier than the fly pictured.
The parachute is smaller too. The legs and back wings are pretty much
spot on though. The size I use is around 6-10.

When looking at the fly, one would think it wouldn't catch any fish at
all. But I have fished it for a few seaons along side dave's hoppers
and numerous other hoppers, and it easily outfishes them from my
experience. It's especially good at getting bigger fish off the bottom.