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.

View from atop the permafrost slump

From the Selawik River in Alaska

Stream photos

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Clostoeca disjuncta (Northern Caddisfly) Caddisfly Larva Clostoeca disjuncta (Northern Caddisfly) Caddisfly Larva

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington

This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.

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.

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psilotreta

Male Psilotreta labida (Dark Blue Sedge) Caddisfly Adult

11 Pictures

Lateral view of a Male Psilotreta labida (Odontoceridae) (Dark Blue Sedge) Caddisfly Adult from the West Branch of the Delaware River in New York

Collected May 31, 2007 from the West Branch of the Delaware River in New York

Added by Troutnut on June 4, 2007

Collected May 31, 2007 from the West Branch of the Delaware River in New York and added by Troutnut on June 4, 2007

Litobrancha
Knoxville TN

Posts: 51

Litobrancha on Jun 4, 2007June 4th, 2007, 11:47 am EDT

pretty sure this psilotreta, possibly labida. frontalis has big puffy head warts that pop out and hairy maxillary palps. some of the other species are lighter colored.

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Jun 4, 2007June 4th, 2007, 12:14 pm EDT

Thanks. :) That would fit pretty well.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Hex MayfliesHexagenia limbata

Troutnut Forum › Specimen Discussion › psilotreta