Header image
Enter a name
Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Slough Creek in Wyoming

Stream photos

Featured on the forum
Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)
Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf
Re: UV spectrum and trout
In General Discussion by Martinlf
Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)
Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)
Isoperla (Stripetails and Yellow Stones) Stonefly AdultIsoperla (Stripetails and Yellow Stones) Stonefly Adult
Dorsal view of a Isoperla (Perlodidae) (Stripetails and Yellow Stones) Stonefly Adult from Mystery Creek #308 in Washington
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.

Hesperoperla pacifica (Golden Stone) Stonefly Nymph Pictures

Ruler view of a Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington The smallest ruler marks are 1 mm.
Dorsal view of a Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Ventral view of a Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington
Hesperoperla pacifica (Perlidae) (Golden Stone) Stonefly Nymph from the South Fork Snoqualmie River in Washington

This stonefly was collected from the South Fork Snoqualmie River in Washington on March 19th, 2019 and added to Troutnut.com by Troutnut on June 14th, 2019.

Discussions of this Nymph

Hesperoperla pacifica
Posted by Millcreek on Jul 19, 2019
Last reply on Jul 19, 2019 by Millcreek
Most likely Hesperoperla pacifica. Examples can be seen here.
https://bugguide.net/node/view/196000/bgimage
Reply

Start a Discussion of Nymph

Hesperoperla pacifica (Golden Stone) Stonefly Nymph Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Plecoptera (Stoneflies)
  5. » Family Perlidae (Golden Stones)
  6. » Genus Hesperoperla (Golden Stones)
  7. » Species pacifica (Golden Stones)
Collection details
Location: South Fork Snoqualmie River, Washington
Date: March 19th, 2019
Added to site: June 14th, 2019
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy