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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.

Updates from August 30, 2007

Closeup insects by Bnewell from Crazy Beaver Spring in Montana

Siphlonurus autumnalis (Siphlonuridae) (Gray Drake) Mayfly Nymph from Crazy Beaver Spring in Montana

Halibut fishing out of Homer, Alaska

By Troutnut on August 26th, 2007
After fishing the Kenai I headed down to Homer and went on a half-day halibut fishing trip with North Country Charters. It was my first time out on the ocean.

One of the most memorable parts was catching a two-foot-long spiny dogfish shark. In my head, the reaction was, "Wow! I just caught a shark!" I thought some pictures were in order, at least. But the captain immediately unhooked it and unceremoniously tossed it back into Cook Inlet. I soon learned that dogfish are very common and are considered a nuisance or trash fish by halibut anglers and charters, which is why the captain treated it like a creek chub he'd just removed from a trout fly. They could be a little more alert to the fact that some of their customers might find catching any shark to be pretty exciting. Still, I had a great time with them and have gone out again with them service since then.

Photos by Troutnut from Miscellaneous Alaska and Cook Inlet in Alaska

One of my first two keeper halibut... incredibly tasty fish!

From Homer in Alaska
Heading out on my first halibut-fishing trip.  The gear is a little heavier than what I'm used to.

From Homer in Alaska
Halibut bait.  The herring cut herring is the main treat, but the pieces of octopus really stay on the hook.  Combine them, and you'll have something down there to get the halibut to keep nibbling if it steals the herring.

From Homer in Alaska
Sunset over the Alaska Railroad tracks along the Turnagain Arm of Cook Inlet, photographed on my drive back home to Fairbanks from the Kenai Peninsula.

From Turnagain Arm of Cook Inlet in Alaska
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