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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.

The Namekagon River in Wisconsin

Stream photos

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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
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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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Stonefly Genus Pteronarcella (Salmonflies)

These stoneflies are similar to Pteronarcys and may be important to anglers in the West, but they are not quite as large.

Where & when

In 15 records from GBIF, adults of this genus have been collected during July (40%), June (40%), August (13%), and September (7%).

In 1 record from GBIF, this genus has been collected at elevation of 29016 ft.

Genus Range
Map of specific collection sites

Start a Discussion of Pteronarcella

References

Stonefly Genus Pteronarcella (Salmonflies)

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Plecoptera (Stoneflies)
  5. » Family Pteronarcyidae (Salmonflies)
  6. » Genus Pteronarcella (Salmonflies)
2 species (Pteronarcella badia and Pteronarcella regularis) aren't included.
Genus Range
Map of specific collection sites
Common Name
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