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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.

Dorsal view of a Epeorus albertae (Heptageniidae) (Pink Lady) Mayfly Nymph from the East Fork Issaquah Creek in Washington
This specimen keys to the Epeorus albertae group of species. Of the five species in that group, the two known in Washington state are Epeorus albertae and Epeorus dulciana. Of the two, albertae has been collected in vastly more locations in Washington than dulciana, suggesting it is far more common. On that basis alone I'm tentatively putting this nymph in albertae, with the large caveat that there's no real information to rule out dulciana.
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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Male Baetis (Blue-Winged Olive) Mayfly Spinner Pictures

Probably Baetis tricaudatus.

This mayfly was collected from the Touchet River in Washington on July 13th, 2011 and added to Troutnut.com by Bnewell on July 13th, 2011.


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Male Baetis (Blue-Winged Olive) Mayfly Spinner Pictures

Collection details
Location: Touchet River, Washington
Date: July 13th, 2011
Added to site: July 13th, 2011
Author: Bnewell
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