Stoneflies have an incomplete life cycle and go from the Larva stage to the Adult stage. They can however stay in the Larva stage for up to 3 years, going through as many as 25 moults. The Stonefly Larva lives on the bottom of rivers and streams and sometimes among the rocks in lakes.

Although most Stonefly Nymphs are vegetarian, and live on the algae and vegetation of the stream bottom, some species are carnivorous.

These Stonefly species live mostly on mayfly and other insect larva.

Stonefly Nymphs are poor swimmers, preferring to crawl along the stream bottom or up on rocks and vegetation.

When they lose their grip they quite often become a handy snack for nearby trout.

A lot of fishermen have found that there is a relationship between Steelhead and the Stonefly. If you find hatches of Stoneflies when the Steelhead are running you will quite likely find Steelhead.

Some of the Stone Fly Nymph Fly Patterns include;

image ANDERSON’S BROWN STONE image BIRD’S STONE NYMPH
image BITCH CREEK image BOX CANYON STONE
image BROOK’S STONE image BROWN STONE
image CARRIERS STONE image DARK STONE
image DIONNE’S STONE image EARLY BROWN STONE
image EARLY STONE image GOLDEN STONE NYMPH
image KAUFMANN’S BLACK STONE image KAUFMANN’S BROWN STONE
image KAUFMANN’S GOLDEN STONE image LARGE BLACK STONE
image LITTLE YELLOW STONE image MATT’S FUR
image MONTANA STONE image MORRIS STONE
image PEACOCK MATT’S FUR image PHEASANT BACK STONE
image RUBBER LEGS BROWN STONE image RUBBER LEGS HARE’S EAR
image RUBBER LEGS KAUFMANN’S STONE image STONEFLY CREEPER
image TED’S STONE image WHIT’S BLACK STONE NYMPH
image WHIT’S GOLDEN STONE NYMPH image YELLOW STONE NYMPH