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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.

Dorsal view of a Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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.
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Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Jun 23, 2014June 23rd, 2014, 11:23 pm EDT
Caddisfly Species Distribution Maps are now available for each caddisfly species which has been recorded in a USA state or CAN province.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Creno
Grants Pass, OR

Posts: 302
Creno on Jun 24, 2014June 24th, 2014, 9:01 am EDT
Roger - Thanks - This will be useful. Have you added records since the Natureserve 2013 update?

dave
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Jun 24, 2014June 24th, 2014, 2:04 pm EDT
Dave-

Have you added records since the Natureserve 2013 update?


Yes, I was provided with a full extract on 5/5/2014. It included numerous new species and distributions for the 2014 update, which had not yet been added to the production 2013 database, although they likely have been by now.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Creno
Grants Pass, OR

Posts: 302
Creno on Jun 24, 2014June 24th, 2014, 2:41 pm EDT
Great - thanks alot.
Oldredbarn
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Novi, MI

Posts: 2600
Oldredbarn on Jun 26, 2014June 26th, 2014, 4:15 am EDT
Great stuff, Roger! A big thank you as well from Michigan.

Spence
"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively

"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Jun 26, 2014June 26th, 2014, 9:54 am EDT
Dave & Spence-

You are certainly welcome.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Oldredbarn
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Novi, MI

Posts: 2600
Oldredbarn on Jun 26, 2014June 26th, 2014, 3:41 pm EDT
Roger,

Now we only need a couple really good pictures of every bug...Could you arrange this? :) Preferably from the bottom, the trouts view, please.

Spence
"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively

"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Jun 26, 2014June 26th, 2014, 9:53 pm EDT
Hi Spence-

Now we only need a couple really good pictures of every bug...Could you arrange this? :) Preferably from the bottom, the trouts view, please.

Although you obviously asked this question (largely) in rhetorical jest, the answer is probably worth providing, if not for you, at least to educate others who may read this thread.

The answer is no, because the vast majority of caddisfly photos are not identified below genus level. Why is this, one may ask? It is because a macro photo of a caddisfly is rarely adequate for species level identification. In most cases, it is necessary for a caddisfly expert (like Dave Ruiter) to perform a microscopic examination of a preserved specimen for species level identification.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

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