Stonefly Encyclopedia: 700+ photos, life cycles, fly ...
Stoneflies are the largest of the three main types of trout stream insects. While far less important than caddis and mayflies in the East and Midwest where they are mostly thought of as handy nymphs to imitate when nothing much is hatching, it''s in the West where this order comes into its own. ... (Golden Stone). State Washington. Date Taken ...