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 spent more than an hour casting to several rising trout in this pool and caught only two. Its clear water and tricky currents harbor dozens of free-rising, usually very hard-to-catch fish.

From Enfield Creek in New York

Stream photos

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Amphizoa Beetle Larva Amphizoa Beetle Larva

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

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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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Lara Riffle Beetle Larva Pictures

Lara (Elmidae) Riffle Beetle Larva from the South Fork Snoqualmie River in Washington

Dorsal view of a Lara (Elmidae) Riffle Beetle Larva from the South Fork Snoqualmie River in Washington

This false-color image with contrast extremely boosted shows the structure of the gills that were sometimes retracted inside the abdomen.

Lara (Elmidae) Riffle Beetle Larva from the South Fork Snoqualmie River in Washington

Ventral view of a Lara (Elmidae) Riffle Beetle Larva from the South Fork Snoqualmie River in Washington

Ruler view of a Lara (Elmidae) Riffle Beetle Larva from the South Fork Snoqualmie River in Washington The smallest ruler marks are 1 mm.

This riffle beetle was collected from the South Fork Snoqualmie River in Washington on May 14th, 2022 and added to Troutnut.com by Troutnut on May 16th, 2022.

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References

Merritt R.W., Cummins, K.W., and Berg, M.B. 2019. An Introduction to the Aquatic Insects of North America (Fifth Edition). Kendall/Hunt Publishing Company.