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.

The Tanana River in Alaska

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)
Female Hydropsyche (Spotted Sedge) Caddisfly AdultFemale Hydropsyche (Spotted Sedge) Caddisfly Adult
Lateral view of a Female Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Columbia River in Washington
7 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.

Female Drunella cornuta (Large Blue-Winged Olive) Mayfly Spinner Pictures

I took this picture of this specimen on the stream when I collected her, to show the color of the egg mass. Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Lateral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Dorsal view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Ventral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Ruler view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania The smallest ruler marks are 1 mm.

This mayfly was collected from Brodhead Creek in Pennsylvania on May 27th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.


Start a Discussion of Spinner

Female Drunella cornuta (Large Blue-Winged Olive) Mayfly Spinner Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
  6. » Genus Drunella (Blue-Winged Olives)
  7. » Species cornuta (Large Blue-Winged Olives)
Collection details
Location: Brodhead Creek, Pennsylvania
Date: May 27th, 2007
Added to site: June 4th, 2007
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy