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.

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

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.

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.

Cayuga Inlet

Closeup insects by Troutnut from Cayuga Inlet in New York

Female Baetidae (Blue-Winged Olive) Mayfly Dun

10 Pictures

This one sat unseen on my hard drive for 18 years, until I noticed that it wasn't on the site and added it in 2023.

Collected October 4, 2006 from Cayuga Inlet in New York

Added by Troutnut on May 8, 2023

Collected October 4, 2006 from Cayuga Inlet in New York and added by Troutnut on May 8, 2023

Hex MayfliesHexagenia limbata

Trout and Salmon Streams › New York › Cayuga Inlet