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?