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.

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.

Millcreek has attached these 6 pictures. The message is below.
Showing sternites. Coloration common to all specimens.
Length approximately 6 mm (excluding cerci).
Length approximately 6 mm (excluding cerci).
Length approximately 8 mm (excluding cerci).
Length approximately 8 mm (excluding cerci).
Length approximately 8 mm (excluding cerci).
Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Apr 10, 2015April 10th, 2015, 7:22 am EDT
Common in the Russian River. Usually found in small gravel, in shallow water. The nymphs were keyed out to family using Merritt, Cummins and Berg (2008) and to species using Allen and Edmunds "A Revision of the Genus Ephemerella (Ephemeroptera; Ephemerellidae) VII. The Subgenus Ephemerella in North America".
http://www.ephemeroptera-galactica.com/pubs/pub_a/puballenr1965p244.pdf
These nymphs show considerable variation in coloring but maintain the same body shape and typical coloring of the sternites.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
Troutnut
Troutnut's profile picture
Administrator
Bellevue, WA

Posts: 2758
Troutnut on Apr 11, 2015April 11th, 2015, 11:12 am EDT
Excellent photos!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Apr 12, 2015April 12th, 2015, 6:26 am EDT
Thanks, glad you enjoyed them.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
PaulRoberts
PaulRoberts's profile picture
Colorado

Posts: 1776
PaulRoberts on Apr 12, 2015April 12th, 2015, 5:38 pm EDT
Gorgeous critter.

Quick Reply

Related Discussions

Topic
Replies
Last Reply
3
Oct 30, 2010
by Taxon
7
Jul 19, 2010
by Jmd123
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy