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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Glossy Wing Sedges

This common name refers to only one genus. Click its scientific name to learn more.

Caddisfly Genus Macrostemum

These are often called Glossy Wing Sedges.
Macrostemum zebratum is by far the most important species in this genus.

These fast-water caddisflies are unusually elegant; they have shiny, dark metallic-colored bodies and goossy wings.

Glossy Wing Sedges

Scientific Name
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