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.

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.

Pteronarcys californica (Giant Salmonfly) Stonefly Nymph Pictures

This salmonfly nymph is probably not quite fully grown, as it still has a couple months yet to emerge.

Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Nymph from the Yakima River in Washington
Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Nymph from the Yakima River in Washington
Dorsal view of a Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Nymph from the Yakima River in Washington
Ventral view of a Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Nymph from the Yakima River in Washington
Ruler view of a Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Nymph from the Yakima River in Washington The smallest ruler marks are 1 mm.

This stonefly was collected from the Yakima River in Washington on April 9th, 2021 and added to Troutnut.com by Troutnut on April 12th, 2021.


Start a Discussion of Nymph

Pteronarcys californica (Giant Salmonfly) Stonefly Nymph Pictures

Collection details
Location: Yakima River, Washington
Date: April 9th, 2021
Added to site: April 12th, 2021
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy