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.

I spent more than an hour casting to several rising trout in this pool and caught only two. Its clear water and tricky currents harbor dozens of free-rising, usually very hard-to-catch fish.

From Enfield Creek in New York

Stream photos

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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

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.

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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.

Light Cahills?

Adirman

Monticello, NY

Posts: 479

Adirman on Jun 14, 2016June 14th, 2016, 5:00 am EDT

Hey Guys, I was fishing last evening on the Willow and noticed the usual stuff that been around lately, a mix of caddis, Slate Drake, Sulfurs, etc. but then i started seeing a few quite large Mayflys float past me. I picked one up to get a good look, it was around a size 10, VERY white, wings looked pretty white too, sorry I dont have a pic, maybe I can get one in a day or 2, any thoughts based on time of year and limited description I provided? Im thinking its a Light Cahill of the Species Macaffertium Ithaca

Thanks,

Adirman

Millcreek
Healdsburg, CA

Posts: 344

Millcreek on Jun 14, 2016June 14th, 2016, 6:24 am EDT

Adirman,

Could be Maccaffertium ithaca, also could be Maccaffertium terminatum or Epheron leukon. Also probably others I missed.

Here are some links:

Maccaffertium terminatum - http://www.troutnut.com/hatch/600/Mayfly-Maccaffertium-terminatum

Epheron leukon - http://bugguide.net/node/view/316968/bgimage

"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

Adirman

Monticello, NY

Posts: 479

Adirman on Jun 16, 2016June 16th, 2016, 7:37 pm EDT

Not Ephoron leukon, too different, either Terminatum or Ithaca I think, was definitely a good sized Mayfly, i thought a 10 when I observed it

PagansMind