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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.

The Firehole River in Wyoming

Stream photos

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Tricorythodes (Trico) Mayfly NymphTricorythodes (Trico) Mayfly Nymph
Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington
9 Recently Added Photos
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 26, 2004

Updates from July 26, 2004

Photos by Troutnut

A whitetail deer pretends to be a moose, sticking its head underwater to graze on rich aquatic vegetation.
An annoying, trout-scaring brood of mergansers shoots a rapids in reverse.

Closeup insects by Troutnut from Miscellaneous Wisconsin and the Bois Brule River in Wisconsin

Female Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Spinner
2 Pictures
Ruler view of a Female Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Spinner from unknown in Wisconsin The smallest ruler marks are 1/16".
Collected July 26, 2004 from unknown in Wisconsin
Added by Troutnut on January 25, 2006
Collected July 26, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006
Female Paraleptophlebia (Blue Quill) Mayfly Spinner
3 Pictures
Female Paraleptophlebia (Leptophlebiidae) (Blue Quill) Mayfly Spinner from the Bois Brule River in Wisconsin
Added by Troutnut on January 25, 2006
Collected July 26, 2004 from the Bois Brule River in Wisconsin and added by Troutnut on January 25, 2006
Female Baetidae (Blue-Winged Olive) Mayfly Spinner
2 Pictures
Ruler view of a Female Baetidae (Blue-Winged Olive) Mayfly Spinner from unknown in Wisconsin The smallest ruler marks are 1/16".
Collected July 26, 2004 from unknown in Wisconsin
Added by Troutnut on January 25, 2006
Collected July 26, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006

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