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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.

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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Calineuria californica (Golden Stone) Stonefly Nymph Pictures

This striking golden stonefly is the first of its species I've had the chance to photograph.

Ruler view of a Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington The smallest ruler marks are 1 mm.
Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Dorsal view of a Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Ventral view of a Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
The transverse row of spinules on the occiput (little spikes along the back of the head) is an identifying characteristic clearly visible here. This row is "irregular" and "sinuate." Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Lateral view of a Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington
The spiky brown hairs sticking up from the tergites are the "intercalary bristles" mentioned in the key. Calineuria californica (Perlidae) (Golden Stone) Stonefly Nymph from Holder Creek in Washington

This stonefly was collected from Holder Creek in Washington on April 12th, 2021 and added to Troutnut.com by Troutnut on April 13th, 2021.


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Calineuria californica (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 Calineuria (Golden Stones)
  7. » Species californica (Golden Stones)
Collection details
Location: Holder Creek, Washington
Date: April 12th, 2021
Added to site: April 13th, 2021
Author: Troutnut
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