The Golden Stonefly is a large, yellow-and-brown stonefly with intricate dorsal patterning, common along rocky eastern streams in summer. Its nymphs are important clean-water indicators — abundant in unpolluted, well-oxygenated streams and absent from polluted ones. Fly fishers use stonefly patterns as some of the most effective artificial lures for trout.
Not certain it is a Golden Stonefly? What bug is this? walks through what to check first and the lookalikes that catch people out.
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