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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.

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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.

Female Drunella grandis (Western Green Drake) Mayfly Dun Pictures

I collected this specimen while away from all my good photography equipment except the camera and one of my macro lenses, so I made do. The lighting is from lamps in a hotel room, so it was hard to edit for really true colors, but I tried to get as close as possible. The body was 13 mm long, wing 19 mm long.

Lateral view of a Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington
Dorsal view of a Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington
Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington
Ventral view of a Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington
Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington
Female Drunella grandis (Ephemerellidae) (Western Green Drake) Mayfly Dun from the American River in Washington

This mayfly was collected from the American River in Washington on July 14th, 2017 and added to Troutnut.com by Troutnut on July 24th, 2017.


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Female Drunella grandis (Western Green Drake) Mayfly Dun Pictures

Collection details
Location: American River, Washington
Date: July 14th, 2017
Added to site: July 24th, 2017
Author: Troutnut
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