Troutline Tactical Tricolor Catgut Caddis Pupae is a nymph tied with a gold tungsten bead and paired with a barbless scud that makes it sink fast. The body is made of catgut to be more realistic in how the fly looks. The underbody is made in 3 colors to give an extra appeal.
This nymph like all catgut nymphs has a great efficiency in waters where caddis insects are abundant. The fly was developed by Czech fishermen after many participation at European fly fishing competitions.