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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.

Case view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
It's only barely visible in one of my pictures, but I confirmed under the microscope that this one has a prosternal horn and the antennae are mid-way between the eyes and front of the head capsule.

I'm calling this one Pycnopsyche, but it's a bit perplexing. It seems to key definitively to at least Couplet 8 of the Key to Genera of Limnephilidae Larvae. That narrows it down to three genera, and the case seems wrong for the other two. The case looks right for Pycnopsyche, and it fits one of the key characteristics: "Abdominal sternum II without chloride epithelium and abdominal segment IX with only single seta on each side of dorsal sclerite." However, the characteristic "metanotal sa1 sclerites not fused, although often contiguous" does not seem to fit well. Those sclerites sure look fused to me, although I can make out a thin groove in the touching halves in the anterior half under the microscope. Perhaps this is a regional variation.

The only species of Pycnopsyche documented in Washington state is Pycnopsyche guttifera, and the colors and markings around the head of this specimen seem to match very well a specimen of that species from Massachusetts on Bugguide. So I am placing it in that species for now.

Whatever species this is, I photographed another specimen of seemingly the same species from the same spot a couple months later.
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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Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Feb 11, 2013February 11th, 2013, 6:23 am EST
Decided to go solo.
Catskill fly fisher for fifty-five years.
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Feb 11, 2013February 11th, 2013, 9:14 am EST
Decided to go solo.
Catskill fly fisher for fifty-five years.
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Feb 11, 2013February 11th, 2013, 12:44 pm EST
Thanks, Matt. I somehow had missed the date in your original post, so I've deleted my silly question. Hope you get some takers--this sounds like a fantastic trip. Al Caucci runs a 7 day trip on the Missouri for $3,700.00, so your trip is a bargain for sure.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Gutcutter
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Pennsylvania

Posts: 470
Gutcutter on Feb 11, 2013February 11th, 2013, 12:45 pm EST
The river and the lodging are as Matt described. And he knows that section of the river as well as (or better than) some guides do.
The dates don't work for me, so I can't make it this year.
It is an amazing fishery.
All men who fish may in turn be divided into two parts: those who fish for trout and those who don't. Trout fishermen are a race apart: they are a dedicated crew- indolent, improvident, and quietly mad.

-Robert Traver, Trout Madness
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Feb 11, 2013February 11th, 2013, 1:33 pm EST
Post deleted.
Catskill fly fisher for fifty-five years.

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