Header image
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.

Female Rhithrogena undulata (Small Western Red Quill) Mayfly Spinner Pictures

This one was collected at the same time as this male and is likely the same species.

This mayfly was collected from the Madison River in Montana on July 1st, 2019 and added to Troutnut.com by Troutnut on July 17th, 2019.

Start a Discussion of this Spinner:

You must log in at the top of the page to post. If you haven't registered yet, it's this easy:

Troutnut.com is copyright © 2004-2023 (email Jason). privacy policy