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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 Middle Fork of the Koyukuk River in Alaska

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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington

This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.

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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 May 25, 2004

Updates from May 25, 2004

Closeup insects by Troutnut from Miscellaneous Wisconsin in Wisconsin

Female Epeorus vitreus (Sulphur) Mayfly Spinner

Female Epeorus vitreus (Heptageniidae) (Sulphur) Mayfly Spinner from unknown in Wisconsin

I collected this one as a dun, and she molted into a spinner in my room.

Collected May 25, 2004 from unknown in Wisconsin

Added by Troutnut on January 25, 2006

Collected May 25, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006

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