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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.

Troutnut
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Bellevue, WA

Posts: 2758
Troutnut on Apr 4, 2008April 4th, 2008, 3:58 pm EDT
Last spring I spent a few months working on another website, then put it on hold at about 95% completion when I ran off to grad school. I finally found a few minutes here and there to finish up, so here it is:

HackleHead Fly Tying Contest

Current contests


  • Grand Opening Contest -- $50 Orvis gift certificate for first place, $25 for second place.

  • Fly Fishing Blogger Showdown -- A competition for those of you with websites. The twist is that you can use your blog to get people to vote for you. The winner's prize is pretty good, so check it out.



It also only takes about 30 seconds to add a fly, once you've got the picture, unless you add some optional details.

Head on over and try it out!!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Apr 7, 2008April 7th, 2008, 11:32 am EDT
Come on, guys... I know some of you have pictures of flies you've tied sitting around on your hard drives. Let's see them!

At least sign in and check out and rate the other flies.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Apr 20, 2008April 20th, 2008, 7:33 pm EDT
Got a good start so far! People have put some really cool stuff up.

One of the best parts of the site right now is a profile of Gonzo's flies. I borrowed a couple of his flyboxes and photographed everything in them to put on Hacklehead. They're not only realistic, but lifelike and fishable, too.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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