The Disco Midge is a great fly for fishing slightly off color water. Its flashy enough to catch the trout's attention, and not too flashy to scare them away. For instance, my local tail water (the San Juan River) will get cloudy in the winter due to the lake above turning over. This is the time I start using flashier flies like this disco midge.
Hook: Lightning Strike SE7 in size 24
Thread: Veevus 16/0 in black
Wrap: Fine Flashabou in Pearl
Dubbing: Super Fine Dubbing in Black