Pic and Pattern (hopefully)

Looking to tie up a fly I used this fall - Dandy Devine - It's a nymph. I hear it is popular in Montana as a dropper fly.
I didn't get a long enough look at it and my old brain can't remember all what it saw.
Anyone know what I'm talking about?
Thanks Rob - I found the same thing - was hoping the picture would have been a little better. I don't mind the source whatsoever - may have to be the route I go. Thanks for getting back to me.