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.

Two major forks of this grayling stream come together in this pretty pool.

From the Chena River in Alaska

Stream photos

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In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

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In the Mayfly Genus Tricorythodes by Martinlf

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In General Discussion by Martinlf

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In General Discussion by Konchu (Smallflyguy replied)

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Epeorus albertae (Pink Lady) Mayfly Nymph Epeorus albertae (Pink Lady) Mayfly Nymph

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.

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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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Updates from July 1, 2007

Photos by Troutnut from Minto Flats in Alaska

This sky was the perfect scenic complement to the wide-open marsh where we were pike fishing.

From Minto Flats in Alaska

Talk about a bad hair day. This chartreuse/everglow deceiver had been through about 15 northern pike already.

From Minto Flats in Alaska

I took this picture after midnight, when the pike fishing was still hot.

From Minto Flats in Alaska

Closeup insects by Bnewell from Denali National Park in Alaska

Siphlonurus phyllis (Gray Drake) Mayfly Nymph

3 Pictures

Siphlonurus phyllis (Siphlonuridae) (Gray Drake) Mayfly Nymph from Temporary ponds- Glacier Nat. Park in Alaska

This specimen was the first record from Montana and the first record from the mountain west except Alberta where it was first described. It was found in temporary ponds.The nymph has double gills on all segments. The abdominal stripe is an important feature for identification

Collected July 1, 2007 from Temporary ponds- Glacier Nat. Park in Alaska

Added by Bnewell on June 26, 2011

Collected July 1, 2007 from Temporary ponds- Glacier Nat. Park in Alaska and added by Bnewell on June 26, 2011