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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Holocentropus Caddisfly Larva Holocentropus Caddisfly Larva

Dorsal view of a Holocentropus (Polycentropodidae) Caddisfly Larva from the Yakima River in Washington

This one seems to tentatively key to Holocentropus, although I can't make out the anal spines in Couplet 7 of the Key to Genera of Polycentropodidae Larvae nor the dark bands in Couplet 4 of the Key to Genera of Polycentropodidae Larvae, making me wonder if I went wrong somewhere in keying it out. I don't see where that could have happened, though. It might also be that it's a very immature larva and doesn't possess all the identifying characteristics in the key yet. If Holocentropus is correct, then Holocentropus flavus and Holocentropus interruptus are the two likely possibilities based on range, but I was not able to find a description of their larvae.

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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.

Can someone please identify this insect?

Byhaugh
Hawaii

Posts: 56

Byhaugh on Apr 22, 2014April 22nd, 2014, 11:58 am EDT

This is the photo.
Thanks!

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Byhaugh
Hawaii

Posts: 56

Byhaugh on Apr 23, 2014April 23rd, 2014, 10:11 am EDT

Sorry,
I know it would help to have a better photo, but this is the best I can do.
Surely someone can suggest an identification?

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Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 23, 2014April 23rd, 2014, 1:31 pm EDT

Hi Mack,

Although I also believe to be of family Baetidae, it doesn't have the hind wing profile I would associate with it being of genus Callibaetis.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Entoman

Northern CA & ID

Posts: 2604

Entoman on Apr 23, 2014April 23rd, 2014, 6:02 pm EDT

Roger is right, IMO. Where & when was this fly collected? Size?

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

Byhaugh
Hawaii

Posts: 56

Byhaugh on Apr 24, 2014April 24th, 2014, 5:22 am EDT

Here is another (better) picture

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Entoman

Northern CA & ID

Posts: 2604

Entoman on Apr 24, 2014April 24th, 2014, 3:44 pm EDT

Hi Byron,

The latest photo is of a mayfly in an entirely different family from your first one. Do you have answers to my questions posted above?

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

Byhaugh
Hawaii

Posts: 56

Byhaugh on Apr 24, 2014April 24th, 2014, 4:45 pm EDT

Ento,
I know, but it also is up for identification. Pic. Is a mayfly from Argentina.
Given its speckled nature and that it is from a lake I thought Calibaetis. But it has large hind wings. Could it be related to the Calibaetis??
Thanks