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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.

Cedar sweepers line the fertile spring creek headwaters of a famous trout stream. From the Bois Brule River in Wisconsin

Stream photos

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Lateral view of a Coleoptera (Beetle) Insect Larva from Sears Creek 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 Species Isoperla dicala (Yellow Sallies)

Where & when

In 54 records from GBIF, adults of this species have mostly been collected during June (46%), May (37%), and July (11%).

In 6 records from GBIF, this species has been collected at elevations ranging from 341 to 1951 ft, with an average (median) of 1743 ft.

Species Range
Map of specific collection sites

Start a Discussion of Isoperla dicala

Stonefly Species Isoperla dicala (Yellow Sallies)

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Plecoptera (Stoneflies)
  5. » Family Perlodidae (Springflies and Yellow Stones)
  6. » Genus Isoperla (Stripetails and Yellow Stones)
  7. » Species dicala (Yellow Sallies)
Species Range
Map of specific collection sites
Common Names
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