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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.

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 Baetis tricaudatus (Blue-Winged Olive) Mayfly Dun Pictures

This dun emerged on my desk from a container of nymphs I was sorting, so I was able to get an ID from the nymphs. I also uploaded photos of a female nymph and a male nymph.

Dorsal view of a Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Ventral view of a Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
Lateral view of a Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington
I took this scale shot after preserving the specimen in alcohol already, so it's wrinkly.

Ruler view of a Female Baetis tricaudatus (Baetidae) (Blue-Winged Olive) Mayfly Dun from the Yakima River in Washington The smallest ruler marks are 1 mm.

This mayfly was collected from the Yakima River in Washington on April 9th, 2021 and added to Troutnut.com by Troutnut on April 11th, 2021.


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Female Baetis tricaudatus (Blue-Winged Olive) Mayfly Dun Pictures

Collection details
Location: Yakima River, Washington
Date: April 9th, 2021
Added to site: April 11th, 2021
Author: Troutnut
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