Header image
Enter a name
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.

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
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.

Ephemerella needhami (Little Dark Hendrickson) Mayfly Nymph Pictures

Dorsal view of a Ephemerella needhami (Ephemerellidae) (Little Dark Hendrickson) Mayfly Nymph from the Namekagon River in Wisconsin
Ephemerella needhami (Ephemerellidae) (Little Dark Hendrickson) Mayfly Nymph from the Namekagon River in Wisconsin
Ephemerella needhami (Ephemerellidae) (Little Dark Hendrickson) Mayfly Nymph from the Namekagon River in Wisconsin

This mayfly was collected from the Namekagon River in Wisconsin on June 8th, 2005 and added to Troutnut.com by Troutnut on May 26th, 2006.


Start a Discussion of Nymph

Ephemerella needhami (Little Dark Hendrickson) Mayfly Nymph Pictures

Collection details
Location: Namekagon River, Wisconsin
Date: June 8th, 2005
Added to site: May 26th, 2006
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy