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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.

Titcomb Basin in Wyoming

Stream photos

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Sweltsa (Sallfly) Stonefly NymphSweltsa (Sallfly) Stonefly Nymph
Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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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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Mayfly Genus Pseudiron

Where & when

In 5 records from GBIF, adults of this genus have been collected during June (60%) and July (40%).

In 6 records from GBIF, this genus has been collected at elevations ranging from 618 to 4511 ft, with an average (median) of 3953 ft.

Genus Range
Map of specific collection sites

Start a Discussion of Pseudiron

Mayfly Genus Pseudiron

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Pseudironidae
  6. » Genus Pseudiron
Species in Pseudiron
Pseudiron centralis
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Species in Pseudiron: Pseudiron centralis
Genus Range
Map of specific collection sites
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