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.

Female Baetidae (Blue-Winged Olive) Mayfly Dun Pictures

I captured this dun on the same night as a spinner which is probably of the same species.

Lateral view of a Female Baetidae (Blue-Winged Olive) Mayfly Dun from the West Branch of Owego Creek in New York

Female Baetidae (Blue-Winged Olive) Mayfly Dun from the West Branch of Owego Creek in New York

Dorsal view of a Female Baetidae (Blue-Winged Olive) Mayfly Dun from the West Branch of Owego Creek in New York

Ventral view of a Female Baetidae (Blue-Winged Olive) Mayfly Dun from the West Branch of Owego Creek in New York

Ruler view of a Female Baetidae (Blue-Winged Olive) Mayfly Dun from the West Branch of Owego Creek in New York The smallest ruler marks are 1 mm.

This mayfly was collected from the West Branch of Owego Creek in New York on August 9th, 2006 and added to Troutnut.com by Troutnut on August 11th, 2006.

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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.