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.

We were lucky to be able to fish through this storm as it skirted around us to the north, giving us just enough clouds to prompt a BWO hatch but keeping the lighting at a safe distance.

From Slough Creek in Wyoming

Stream photos

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Sweltsa (Sallfly) Stonefly Nymph Sweltsa (Sallfly) Stonefly Nymph

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington

This species was fairly abundant in a February sample of the upper Yakima.

10 Recently Added Photos

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.

Caddisfly ID

Neophylax (Autumn Mottled Sedge) Caddisfly Larva

9 Pictures

Artistic view of a Neophylax (Thremmatidae) (Autumn Mottled Sedge) Caddisfly Larva from Fall Creek in New York

Collected March 29, 2007 from Fall Creek in New York

Added by Troutnut on April 2, 2007

Collected March 29, 2007 from Fall Creek in New York and added by Troutnut on April 2, 2007

DMM
Posts: 34

DMM on Apr 6, 2007April 6th, 2007, 4:10 pm EDT

This is Neophylax. Was the exuvia actually attached to the case? I'll do some more IDs when I get a chance.

David

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Apr 6, 2007April 6th, 2007, 4:42 pm EDT

Thanks for the ID. I believe the exuvia actually was attached, but I don't even remember seeing it on the specimen, so I've got to go by the same pictures you're seeing. I do know that with the way I was moving and sorting these guys around, it's unlikely that a piece of light unattached debris would have just settled on the case like that.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Beachvid
Nationwide

Posts: 14

Beachvid on Apr 10, 2007April 10th, 2007, 2:01 am EDT

Jason:
For the past few days I have studied your images on the new insects. They are very helpful to me and should be helpful to any avid angler.
I am very impressed with your work (and work it is) and just wanted to say so.
James

VideoNut

Creno
Grants Pass, OR

Posts: 302

Creno on Dec 22, 2007December 22nd, 2007, 11:38 am EST

Jason - what do you do with your critters after you take the picture? Is this specimen still available?

Dave