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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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Hydropsyche (Spotted Sedge) Caddisfly LarvaHydropsyche (Spotted Sedge) Caddisfly Larva
Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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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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Male Callibaetis ferrugineus (Speckled Dun) Mayfly Dun Pictures

This is one of four specimens I photographed together from the same hatch, also including a nymph, a female dun, and a male spinner.

Lateral view of a Male Callibaetis ferrugineus (Baetidae) (Speckled Dun) Mayfly Dun from Mystery Creek #304 in Idaho
Ventral view of a Male Callibaetis ferrugineus (Baetidae) (Speckled Dun) Mayfly Dun from Mystery Creek #304 in Idaho
Dorsal view of a Male Callibaetis ferrugineus (Baetidae) (Speckled Dun) Mayfly Dun from Mystery Creek #304 in Idaho
Ruler view of a Male Callibaetis ferrugineus (Baetidae) (Speckled Dun) Mayfly Dun from Mystery Creek #304 in Idaho The smallest ruler marks are 1 mm.

This mayfly was collected from Mystery Creek #304 in Idaho on July 23rd, 2022 and added to Troutnut.com by Troutnut on January 15th, 2023.


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Male Callibaetis ferrugineus (Speckled Dun) Mayfly Dun Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Baetidae (Blue-Winged Olives)
  6. » Genus Callibaetis (Speckled Duns)
  7. » Species ferrugineus (Speckled Duns)
Collection details
Location: Mystery Creek #304, Idaho
Date: July 23rd, 2022
Added to site: January 15th, 2023
Author: Troutnut
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