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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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Epeorus grandis Mayfly Nymph Pictures

Dorsal view of a Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington
Ventral view of a Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington
Ruler view of a Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington The smallest ruler marks are 1 mm.
Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington
Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington
Epeorus grandis (Heptageniidae) Mayfly Nymph from Chatter Creek in Washington

This mayfly was collected from Chatter Creek in Washington on June 3rd, 2022 and added to Troutnut.com by Troutnut on June 4th, 2022.


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Epeorus grandis Mayfly Nymph Pictures

Collection details
Location: Chatter Creek, Washington
Date: June 3rd, 2022
Added to site: June 4th, 2022
Author: Troutnut
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