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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.

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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Stonefly Genus Mesocapnia (Little Snowflies)

Genus Range

Start a Discussion of Mesocapnia

Stonefly Genus Mesocapnia (Little Snowflies)

Taxonomy
Species in Mesocapnia: Mesocapnia variabilis
14 species (Mesocapnia arizonensis, Mesocapnia autumna, Mesocapnia bakeri, Mesocapnia bergi, Mesocapnia bulbosa, Mesocapnia frisoni, Mesocapnia lapwae, Mesocapnia oenone, Mesocapnia ogotoruka, Mesocapnia porrecta, Mesocapnia projecta, Mesocapnia sugluka, Mesocapnia werneri, and Mesocapnia yoloensis) aren't included.
Genus Range
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