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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 Drunella cornuta (Large Blue-Winged Olive) Mayfly Dun Pictures

Lateral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Dun from Brodhead Creek in Pennsylvania
Dorsal view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Dun from Brodhead Creek in Pennsylvania
Ventral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Dun from Brodhead Creek in Pennsylvania
Ruler view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Dun from Brodhead Creek in Pennsylvania The smallest ruler marks are 1 mm.

This mayfly was collected from Brodhead Creek in Pennsylvania on May 29th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.


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Female Drunella cornuta (Large Blue-Winged Olive) Mayfly Dun Pictures

Collection details
Location: Brodhead Creek, Pennsylvania
Date: May 29th, 2007
Added to site: June 4th, 2007
Author: Troutnut
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