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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.

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington
This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.
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.

Millcreek has attached these 4 pictures to aid in identification. The message is below.
Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Jul 18, 2016July 18th, 2016, 7:31 pm EDT
This is a diving beetle larvae of the Dytiscidae family. I don't know the genus or species. Got it in an area of slackwater in the Russian River. Collected on April 1, 2016. The length is approximately 25 mm.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Jul 18, 2016July 18th, 2016, 7:56 pm EDT
Cool critter. Love your photos! Thanks for posting.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Jul 19, 2016July 19th, 2016, 8:34 am EDT
Louis - Thanks. Also, I think I've got the genus figured out. It's probably an Agabus.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

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