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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.

Slough Creek in Wyoming

Stream photos

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Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington
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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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Drunella spinifera (Western Slate Olive Dun) Mayfly Nymph Pictures

This species resembles Drunella grandis but the spines tell the story.

This mayfly was collected from 6 mile Creek in Montana on December 19th, 2009 and added to Troutnut.com by Bnewell on June 26th, 2011.


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Drunella spinifera (Western Slate Olive Dun) Mayfly Nymph 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 spinifera (Western Slate Olive Duns)
Collection details
Location: 6 mile Creek, Montana
Date: December 19th, 2009
Added to site: June 26th, 2011
Author: Bnewell
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