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.

Here Oksrukuyik Creek flows away from the Dalton Highway toward the pipeline. It eventually grows into one of the major rivers of the North Slope, and the main drainage to the west of the Sag, but where it crosses the road it's just a small grayling stream.

From Oksrukuyik Creek in Alaska

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (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.

9 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.

Site updates from June 30, 2011

Closeup insects by Bnewell from the Touchet River in Washington

Female Baetis (Blue-Winged Olive) Mayfly Dun

2 Pictures

Female Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Touchet River in Washington

Collected June 29, 2011 from the Touchet River in Washington

Added by Bnewell on June 30, 2011

Collected June 29, 2011 from the Touchet River in Washington and added by Bnewell on June 30, 2011

Comments / replies

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 2, 2011July 2nd, 2011, 8:42 am EDT

This appears to be a female dun.

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Jul 2, 2011July 2nd, 2011, 1:40 pm EDT

Thanks Lloyd. I fixed it. When someone is adding as many new specimens as Bob has lately, it's easy to accidentally skip over one of the little dropdown menus and leave it set to the default, and the site doesn't have automatic safeguards against overlooking stuff like that... so the users are the safeguard.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist