Biot Stone Black – Tungsten

This fishing fly is a classic pattern that always has a place in an angler?s fly box who fishes streams or rivers with stoneflies in them. The black variation of this great trout fly does well to imitate the skwala stonefly which is often darker in color and hatch in the early spring or late winter. In classic stonefly form, this pattern is great to fish when the bugs are migrating to the edges of the river to hatch.