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

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.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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.

Willmilne has attached these 2 pictures to aid in identification. The message is below.
Manitoba Canada

Posts: 19
Willmilne on Jun 22, 2008June 22nd, 2008, 3:38 am EDT

I was hoping somone might offer an ID on this Caddis. Approx. 25mm long excluding antennae . Collected two days ago in Manitoba Canada on a large river system. I looked at Lafontaine's Caddisflies and elsewhere with no definitive luck.

cheers Will

Site Editor
"Bear Swamp," PA

Posts: 1681
GONZO on Jun 22, 2008June 22nd, 2008, 5:10 am EDT

This looks like Nemotaulius to me, but please await a second opinion as that is strictly a guess.
Grants Pass, OR

Posts: 302
Creno on Jun 22, 2008June 22nd, 2008, 6:08 am EDT
Yes - this is Nemotaulius hostilis
Manitoba Canada

Posts: 19
Willmilne on Jun 22, 2008June 22nd, 2008, 2:50 pm EDT

Many thanks I was surprised to see such a large caddis this early in our season.


Quick Reply

Related Discussions

Last Reply
Nov 27, 2015
by Crepuscular
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy