Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

Male Baetis tricaudatus (Blue-Winged Olive) Mayfly Nymph Pictures

 This specimen and many like it were found with other specimens I found to be duller-colored females of the same species. I wasn't aware of such a difference between male and female nymphs in Baetids, but all the morphological characteristics I checked in the key were the same, and the color patterns are, too -- just not the brightness.

This mayfly was collected from the Yakima River on April 9th, 2021 and added to Troutnut.com on April 12th, 2021.


Start a Discussion of this Nymph:

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

Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.
Top 10 Fly Hatches
Top Gift Shop Designs
Top Insect Specimens
Miscellaneous Sites