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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.

I caught several wild and colorful 8-9 inch brook trout in the clear little pool below this waterfall. From Mystery Creek # 89 in New York

Stream photos

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Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River 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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Drunella grandis (Western Green Drake) Mayfly Nymph Pictures

Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Dorsal view of a Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Ventral view of a Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Ventral view of a Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington
Ruler view of a Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Nymph from the South Fork Snoqualmie River in Washington The smallest ruler marks are 1 mm.

This mayfly was collected from the South Fork Snoqualmie River in Washington on June 13th, 2019 and added to Troutnut.com by Troutnut on June 14th, 2019.


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Drunella grandis (Western Green Drake) 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 Drunella (Blue-Winged Olives)
  7. » Species grandis (Western Green Drakes)
Collection details
Location: South Fork Snoqualmie River, Washington
Date: June 13th, 2019
Added to site: June 14th, 2019
Author: Troutnut
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