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 proteus (Salmonfly) Stonefly Nymph Pictures

Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Dorsal view of a Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Ventral view of a Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York
Ruler view of a Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York The smallest ruler marks are 1 mm.
Artistic view of a Pteronarcys proteus (Pteronarcyidae) (Salmonfly) Stonefly Nymph from Mongaup Creek in New York

This stonefly was collected from Mongaup Creek in New York on April 19th, 2006 and added to Troutnut.com by Troutnut on April 21st, 2006.

Discussions of this Nymph

Correction
Posted by GONZO on Oct 28, 2008
Last reply on Oct 28, 2008 by GONZO
Probably proteus--my bad.
Probably Pteronarcys biloba
2 replies
Posted by GONZO on Oct 4, 2006
Last reply on Oct 4, 2006 by GONZO
Everything seems consistent with P. biloba, the "Knobbed Salmonfly." Unlike dorsata, it is usually found in small streams and headwaters where it is a real mouthful for the little trout. Typical salmonfly nymph ties tend to be likewise, so I usually choose to imitate the younger, smaller generations of nymphs.

Start a Discussion of Nymph

Pteronarcys proteus (Salmonfly) Stonefly Nymph Pictures

Collection details
Location: Mongaup Creek, New York
Date: April 19th, 2006
Added to site: April 21st, 2006
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy