Daioni

A slim Welsh wet fly with a dark body and sparse wing, designed for sea trout in the rivers and loughs of west Wales. Swing it across the current in the gloaming or fish on on a team drifting over a loch. Its slender profile suggests a small baitfish or ascending nymph — understated enough that educated sea trout will commit to it.

Naturals it imitates

slender wet fly / small baitfish suggestion