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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 Firehole River in Wyoming

Stream photos

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Lateral view of a Coleoptera (Beetle) Insect Larva from Sears Creek in Washington
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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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Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun Pictures

Lateral view of a Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun from the Henry's Fork of the Snake River in Idaho
Dorsal view of a Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun from the Henry's Fork of the Snake River in Idaho
Ventral view of a Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun from the Henry's Fork of the Snake River in Idaho
Each ruler mark is 1/16 inch. Ruler view of a Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun from the Henry's Fork of the Snake River in Idaho The smallest ruler marks are 1/16".

This mayfly was collected from the Henry's Fork of the Snake River in Idaho on August 11th, 2018 and added to Troutnut.com by Troutnut on June 12th, 2019.


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Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun Pictures

Taxonomy
  1. Kingdom Animalia (Animals)
  2. » Phylum Arthropoda (Arthropods)
  3. » Class Insecta (Insects)
  4. » Order Ephemeroptera (Mayflies)
  5. » Family Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs)
Collection details
Location: Henry's Fork of the Snake River, Idaho
Date: August 11th, 2018
Added to site: June 12th, 2019
Author: Troutnut
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