Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York

Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

The trees were leafing out and the trout were rising on this productive Wisconsin stream

From the Namekagon River in Wisconsin

Stream photos

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Kogotus Stonefly Nymph Kogotus Stonefly Nymph

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington

This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.

8 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.

Leptophlebia cupida

Female Leptophlebia cupida (Black Quill) Mayfly Spinner

8 Pictures

Lateral view of a Female Leptophlebia cupida (Leptophlebiidae) (Black Quill) Mayfly Spinner from the Namekagon River in Wisconsin

Collected May 27, 2005 from the Namekagon River in Wisconsin

Added by Troutnut on May 24, 2006

Collected May 27, 2005 from the Namekagon River in Wisconsin and added by Troutnut on May 24, 2006

Martinus

Posts: 2

Martinus on Dec 18, 2011December 18th, 2011, 4:45 pm EST

effectivement belle éphémère, cupida est une des premières a apparaitre en rivière au printemps. Elle est suivie de près par nebulosa.

Martin Grenier

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Dec 18, 2011December 18th, 2011, 5:20 pm EST

actually ephemeral beautiful, greedy is one of the first to appear in the river in the spring. It is followed closely by nebulosa.

Sayfu
Posts: 560

Sayfu on Dec 19, 2011December 19th, 2011, 5:40 am EST

Now I know where those scary creature movies come from. I can see crowds of people racing through the big city streets to get away from that thing!

PaulRoberts

Colorado

Posts: 1776

PaulRoberts on Dec 19, 2011December 19th, 2011, 9:59 am EST

Now I know where those scary creature movies come from. I can see crowds of people racing through the big city streets to get away from that thing!

You got it. The idea for the alien in the Sigourney Weaver movie, "Alien", came from the dragonfly larva. If you adjust for scale, Hollywood hasn't rivaled what actually exists.