Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

The Clark's Fork of the Yellowstone River in Wyoming

Stream photos

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Doroneuria baumanni (Golden Stone) Stonefly Nymph Doroneuria baumanni (Golden Stone) Stonefly Nymph

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Sears Creek in Washington

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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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Caddisfly Species Glossosoma penitum (Saddle-case Makers)

Where & when

Time of year : Late July through early August

Preferred waters: Small streams

Species Range

source

Start a Discussion of Glossosoma penitum

References

LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.