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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.

Mystery Creek # 256 in Idaho

Stream photos

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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.
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Female Cinygmula (Dark Red Quill) Mayfly Spinner Pictures

This female was collected from the same spinner cloud as this male.

Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Lateral view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Dorsal view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Ventral view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Each length mark is 1/16 inch. Ruler view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana The smallest ruler marks are 1/16".

This mayfly was collected from Rock Creek in Montana on August 17th, 2018 and added to Troutnut.com by Troutnut on June 13th, 2019.


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Female Cinygmula (Dark Red Quill) Mayfly Spinner Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Heptageniidae (March Browns, Cahills, Quill Gordons)
  6. » Genus Cinygmula (Dark Red Quills)
Collection details
Location: Rock Creek, Montana
Date: August 17th, 2018
Added to site: June 13th, 2019
Author: Troutnut
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