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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.

Sunlight Creek in Wyoming

Stream photos

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Limnephilus (Summer Flier Sedge) Caddisfly LarvaLimnephilus (Summer Flier Sedge) Caddisfly Larva
Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington
This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.
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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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Female Attenella delantala (Little Blue-Winged Olive) Mayfly Nymph Pictures

Ruler view of a Female Attenella delantala (Ephemerellidae) (Little Blue-Winged Olive) Mayfly Nymph from Mystery Creek #249 in Washington The smallest ruler marks are 1 mm.
Dorsal view of a Female Attenella delantala (Ephemerellidae) (Little Blue-Winged Olive) Mayfly Nymph from Mystery Creek #249 in Washington
Female Attenella delantala (Ephemerellidae) (Little Blue-Winged Olive) Mayfly Nymph from Mystery Creek #249 in Washington
Lateral view of a Female Attenella delantala (Ephemerellidae) (Little Blue-Winged Olive) Mayfly Nymph from Mystery Creek #249 in Washington
Ventral view of a Female Attenella delantala (Ephemerellidae) (Little Blue-Winged Olive) Mayfly Nymph from Mystery Creek #249 in Washington

This mayfly was collected from Mystery Creek #249 in Washington on July 25th, 2019 and added to Troutnut.com by Troutnut on July 26th, 2019.


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Female Attenella delantala (Little Blue-Winged Olive) Mayfly Nymph Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
  6. » Genus Attenella
  7. » Species delantala (Little Blue-Winged Olives)
Collection details
Location: Mystery Creek #249, Washington
Date: July 25th, 2019
Added to site: July 26th, 2019
Author: Troutnut
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