Header image
Enter a name
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.

Dorsal view of a Holocentropus (Polycentropodidae) Caddisfly Larva from the Yakima River in Washington
This one seems to tentatively key to Holocentropus, although I can't make out the anal spines in Couplet 7 of the Key to Genera of Polycentropodidae Larvae nor the dark bands in Couplet 4 of the Key to Genera of Polycentropodidae Larvae, making me wonder if I went wrong somewhere in keying it out. I don't see where that could have happened, though. It might also be that it's a very immature larva and doesn't possess all the identifying characteristics in the key yet. If Holocentropus is correct, then Holocentropus flavus and Holocentropus interruptus are the two likely possibilities based on range, but I was not able to find a description of their larvae.
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.

Male Epeorus pleuralis (Quill Gordon) Mayfly Dun Pictures

I kept this specimen after photographing it and it molted into a spinner in perfect condition, which I photographed here.

Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Dorsal view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Lateral view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Artistic view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York
Ruler view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York The smallest ruler marks are 1 mm.
Ventral view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Dun from Dresserville Creek in New York

This mayfly was collected from Dresserville Creek in New York on April 30th, 2007 and added to Troutnut.com by Troutnut on May 3rd, 2007.


Start a Discussion of Dun

Male Epeorus pleuralis (Quill Gordon) Mayfly Dun Pictures

Collection details
Location: Dresserville Creek, New York
Date: April 30th, 2007
Added to site: May 3rd, 2007
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy