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.

Stream photos

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Coleoptera (Beetle) Insect Larva Coleoptera (Beetle) Insect Larva

Lateral view of a Coleoptera (Beetle) Insect Larva from Sears Creek in Washington

6 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.

Great Photos

Male Penelomax septentrionalis Mayfly Nymph

12 Pictures

A hairy mayfly nymph. This gangly, odd-looking nymph is from the rare species Ephemerella septentrionalis

Artistic view of a Male Penelomax septentrionalis (Ephemerellidae) Mayfly Nymph from the Delaware River in New York

This is surely the most distinctive-looking species in Ephemerellidae. I like the rugged, spindly look. If mayflies made movies, Penelomax septentrionalis would probably play the supervillain.

Maybe I should take a break and get something to eat.

Collected May 12, 2007 from the Delaware River in New York

Added by Troutnut on May 18, 2007

Collected May 12, 2007 from the Delaware River in New York and added by Troutnut on May 18, 2007

Earlfishman
Posts: 17

Earlfishman on May 19, 2007May 19th, 2007, 8:07 am EDT

Jason,

The underwater photos are unreal. What sort of lens are you using on that camera? It is just now occuring to me to ask how many of your pictures on this site are taken through a scope and how many are taken with just a camera?

Earl

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on May 19, 2007May 19th, 2007, 8:56 am EDT

Jason, these are the first photos of septentrionalis I've seen--very cool! I've been meaning to discuss this species with Greg Hoover, but I probably won't have a chance to do that until mid-June. I'll be sure to share whatever I learn.

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on May 19, 2007May 19th, 2007, 3:14 pm EDT

Almost all my photos are taken without a microscope, but I do have a very specialized macro photography setup. The "underwater" photos in specimens like this one are actually not underwater, but staged in a tiny aquarium I created to take more natural-looking pictures than my usual white-background ones.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist