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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 Kogotus

Where & when

In 7 records from GBIF, adults of this genus have been collected during August (57%) and July (43%).

In 4 records from GBIF, this genus has been collected at elevations of 8999, 9511, 9544, and 9606 ft.

Genus Range

Specimens of the Stonefly Genus Kogotus

1 Female Adult
3 Nymphs

Start a Discussion of Kogotus

Stonefly Genus Kogotus

Species in Kogotus: Kogotus nonus
1 species (Kogotus modestus) isn't included.
Genus Range
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