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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.

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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.

Ants, Bees, and Wasps

This common name refers to only one order. Click its scientific name to learn more.

Insect Order Hymenoptera

These are pretty much always called Ants, Bees, and Wasps.
See Formicidae for details about the most important trout stream terrestrials in this order.
Dorsal view of a Formicidae (Ant) Insect Adult from the Neversink River in New York
This tiny size 24 flying ant was mixed with a larger variety (see this specimen) falling on the surface of a Catskill river. The trout seemed to respond well to ants of both sizes.

Ants, Bees, and Wasps

Scientific Name
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