Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
The magic fly for me is a bead-head brassie
They are so simple, cheap to tie, and EFFECTIVE that I always try to keep a plentiful stash in my fly box. I've caught grayling, dolly varden and rainbow trout on it.
There is one problem about the fly...or maybe it could just be my tying style.:) The peacock hurl tends to unwind. So instead of tying two or three hurls in at once I'll try doing one at a time.
...and a bead-headed nymph that bore a striking resemblance to a brassie...