The Krystal Flash Midge Emerger is one of the more simple emerger patterns for trout. This midge emerger is really effective despite using only 3 materials. Krystal flash, thread and wire. Tied like a zebra midge, but with an emerging wing. These are one of my favorite midge flies for picky trout in rivers. Its so easy to tie, I can make up 20 of them, and don't mind too much if I loose some due to small tippet.
Hook: Umpqua U202 (or any scud hook size 14-32) Thread: Ultra thread 70 denier (black, red, cream, olive, and brown are common) Ribbing: Ultra wire x-small (gold or silver are common) Watch the video below, or click over to my website to watch the video where there is more information.
http://www.mcflyangler.com/freshwater/nymphs/krystal-flash-midge-emerger