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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.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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.

Female Baetidae (Blue-Winged Olive) Mayfly Spinner Pictures

Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Lateral view of a Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Ventral view of a Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin
Dorsal view of a Female Baetidae (Blue-Winged Olive) Mayfly Spinner from the Namekagon River in Wisconsin

This mayfly was collected from the Namekagon River in Wisconsin on May 26th, 2005 and added to Troutnut.com by Troutnut on May 16th, 2006.


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Female Baetidae (Blue-Winged Olive) Mayfly Spinner Pictures

Collection details
Location: Namekagon River, Wisconsin
Date: May 26th, 2005
Added to site: May 16th, 2006
Author: Troutnut
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