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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
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.

Dorsal view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York
Charlotte, NC

Posts: 11
CalebBoyle on Apr 4, 2007April 4th, 2007, 4:04 pm EDT
Thanks for the pics of this genus Jason. I had sampled a creek that I live close to and had collected something that I thought was Siphloplecton, but afer seeing your photos it must be Ameletus.
Charlotte, NC

Posts: 11
CalebBoyle on Apr 4, 2007April 4th, 2007, 4:07 pm EDT

Looks similar to me. It's amazing how the colorations can vary.
Troutnut's profile picture
Bellevue, WA

Posts: 2758
Troutnut on Apr 4, 2007April 4th, 2007, 5:49 pm EDT
Nice pic Caleb. That's gotta be the same mayfly.

The real distinguishing characteristic is in the mouth parts, which can be verified on my specimen, but the markings are so similar that we've clearly got the same insect.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Charlotte, NC

Posts: 11
CalebBoyle on Apr 5, 2007April 5th, 2007, 1:43 pm EDT
The thing that threw me was the three dark lines on the underside of the abdomen.
germansville PA

Posts: 14
Flytyer0423 on Sep 9, 2009September 9th, 2009, 1:07 pm EDT
this one is screaming for a pheasant tail nymph imitation.
(vistit my website @) www.natureboyoutdoors.weebly.com

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