This fly is designed as a purple searching nymph that is styled after the ever popular Prince Nymph. Searching nymphs are flies like Hare�s Ear, Pheasant Tails etc. Basically, they are flies that don�t necessarily represent a specific bug but are close enough in proportion to various nymphs and can often times be more successful getting trout to hand if the angler is not �spot on� as to what bug trout are keying on. Not sure exactly why this fly turned on? It just seems that fish started eating purple and blue nymphs a few years ago. Or maybe that is just when people started fishing them?