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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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Hydropsyche (Spotted Sedge) Caddisfly Adult Pictures

I haven't keyed this specimen out, but I am instead placing it in Hydropsyche based on the striking visual similarity to this one, which I did key out.

Lateral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Dorsal view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana
Ruler view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Madison River in Montana The smallest ruler marks are 1 mm.

This caddisfly was collected from the Madison River in Montana on June 30th, 2019 and added to Troutnut.com by Troutnut on July 17th, 2019.


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Hydropsyche (Spotted Sedge) Caddisfly Adult Pictures

Collection details
Location: Madison River, Montana
Date: June 30th, 2019
Added to site: July 17th, 2019
Author: Troutnut
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