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.

This view of the pipeline, the Atigun River, and an impressive sunset/rise was one of my first views of the North Slope as I came through Atigun Pass in the middle of the night.

From the Atigun River in Alaska

Stream photos

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Pycnopsyche guttifera (Great Autumn Brown Sedge) Caddisfly Larva Pycnopsyche guttifera (Great Autumn Brown Sedge) Caddisfly Larva

Dorsal view of a Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington

This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.

10 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.

Site updates from August 8, 2004

Photos by Troutnut

Closeup insects by Troutnut from Miscellaneous Wisconsin in Wisconsin

Stenacron (Light Cahill) Mayfly Nymph

2 Pictures

Stenacron (Heptageniidae) (Light Cahill) Mayfly Nymph from unknown in Wisconsin

Collected August 7, 2004 from unknown in Wisconsin

Added by Troutnut on January 18, 2006

Collected August 7, 2004 from unknown in Wisconsin and added by Troutnut on January 18, 2006

Baetidae (Blue-Winged Olive) Mayfly Nymph

3 Pictures

Here's a Baetid nymph close to hatching, with darkened wingpads. It's got dark bands on the tail at the middle and tip, a rounded, oval 7th gill, and gill veinlets which are visible but not conspicuous.

Collected August 7, 2004 from unknown in Wisconsin

Added by Troutnut on January 25, 2006

Collected August 7, 2004 from unknown in Wisconsin and added by Troutnut on January 25, 2006