Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin

Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

The Clark's Fork of the Yellowstone River in Wyoming

Stream photos

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Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva Glossosoma (Little Brown Short-horned Sedge) Caddisfly Larva

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington

I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.

11 Recently Added Photos

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.

Canadian

Canuck
Posts: 2

Canuck on May 5, 2010May 5th, 2010, 3:10 pm EDT

Just wanted to introduce myself,I enjoy fishing for large brown trout and the peace my local rivers afford me.Live in the Toronto area.
thanks

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on May 5, 2010May 5th, 2010, 4:21 pm EDT

Welcome aboard, Canuck. You should find many like-minded folks here, and some of us even enjoy speculating about the identity of aquatic insects.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Jmd123

Oscoda, MI

Posts: 2474

Jmd123 on May 5, 2010May 5th, 2010, 5:58 pm EDT

Senior Canuck, I dated a woman in the Toronto area (Pickering) many years ago. There's some smallmouth in those Toronto area streams along with some nice salmon runs in the fall. I don't remember the name of the stream but we had a favorite and I pulled a couple of nice smallies out of there in early summer, then went back in early fall and found chinook rolling in some of the same holes...

Welcome!

Jonathon

No matter how big the one you just caught is, there's always a bigger one out there somewhere...

Canuck
Posts: 2

Canuck on May 8, 2010May 8th, 2010, 3:29 am EDT

Lots of migratory chinooks around in the fall...we get a good run of wild steelhead in the fall that are fantastic to catch.Thanks for the welcome