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.

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).

5 Recently Added Photos

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.

Up-to-date with the latest mayfly species

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Oct 24, 2006October 24th, 2006, 5:53 pm EDT

I just updated the database to reflect the latest mayfly species changes, thanks to the list Roger aka Taxon kindly put together and posted on various forums. So everything should be shiny and up-to-date. :)

Only two of the affected species, Apobaetis futilis and Epeorus rubidus (which is now a synonym of Epeorus vitreus), have been discussed in the fly fishing literature I've read.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist