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.

Upper Titcomb Lake

From Titcomb Basin in Wyoming

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington

With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.

9 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.

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Identification: Chimarra

Chimarra (Little Black Sedge) Caddisfly Larva

4 Pictures

Dorsal view of a Chimarra (Philopotamidae) (Little Black Sedge) Caddisfly Larva from unknown in Wisconsin

Collected February 29, 2004 from unknown in Wisconsin

Added by Troutnut on January 25, 2006

Collected February 29, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006

Litobrancha
Knoxville TN

Posts: 51

Litobrancha on Sep 23, 2006September 23rd, 2006, 10:56 am EDT

This is a chimarra larvae. note the asymmetrical notch in the frontoclypeus (near the mandibles). the beautiful yellow color goes away in alcohol!

[edited by Troutnut: added title]

Hex MayfliesHexagenia limbata

Troutnut Forum › Specimen Discussion › Identification: Chimarra