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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

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.
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.

Crepuscular
Crepuscular's profile picture
Boiling Springs, PA

Posts: 920
Crepuscular on Mar 27, 2013March 27th, 2013, 5:31 pm EDT
Well the Hendricksons have started here. there were enough today to get the fish eating. I collected some and brought them home. here is a male.

Oldredbarn
Oldredbarn's profile picture
Novi, MI

Posts: 2600
Oldredbarn on Mar 27, 2013March 27th, 2013, 8:08 pm EDT
Well the Hendricksons have started here. there were enough today to get the fish eating. I collected some and brought them home.


...to eat yourself I suppose? :) Maybe as pets...

By-the-way, mister...Your Habs won in OT...:)

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
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Mar 27, 2013March 27th, 2013, 11:48 pm EDT
NICE photo!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
TNEAL
GRAYLING. MICHIGAN

Posts: 278
TNEAL on Mar 28, 2013March 28th, 2013, 3:58 am EDT
makes it easier to think spring while I'm looking out the window at our snow covered ground.................
Crepuscular
Crepuscular's profile picture
Boiling Springs, PA

Posts: 920
Crepuscular on Mar 28, 2013March 28th, 2013, 4:32 am EDT
Well the Hendricksons have started here. there were enough today to get the fish eating. I collected some and brought them home.


...to eat yourself I suppose? :) Maybe as pets...

By-the-way, mister...Your Habs won in OT...:)

Spence


Yes they did! and so what if I snack on a red quill every now and then. I want to know what they taste like, I flavor my dubbings...
Crepuscular
Crepuscular's profile picture
Boiling Springs, PA

Posts: 920
Crepuscular on Mar 28, 2013March 28th, 2013, 4:34 am EDT
NICE photo!


Thanks Jason. I lucked out, no planning there, just put the little bugger on a shiny black piece of plastic which had a black computer screen behind it and snapped away...
Oldredbarn
Oldredbarn's profile picture
Novi, MI

Posts: 2600
Oldredbarn on Mar 28, 2013March 28th, 2013, 5:33 pm EDT
Yes they did! and so what if I snack on a red quill every now and then. I want to know what they taste like, I flavor my dubbings...


That is funny! :) I hope it never comes to that...I'm nit-picky enough with my dubbing mixes...Flavoring is going to put me over the top.

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
Gutcutter
Gutcutter's profile picture
Pennsylvania

Posts: 470
Gutcutter on Mar 30, 2013March 30th, 2013, 5:45 am EDT
...I want to know what they taste like, I flavor my dubbings...


They taste like chicken
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

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