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.

I spent more than an hour casting to several rising trout in this pool and caught only two. Its clear water and tricky currents harbor dozens of free-rising, usually very hard-to-catch fish.

From Enfield Creek in New York

Stream photos

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Psychodidae True Fly Larva Psychodidae True Fly Larva

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington

This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.

8 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.

Don't think it is Gumaga........

Lepidostoma (Little Brown Sedge) Caddisfly Larva

12 Pictures

Case view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

Collected July 27, 2019 from Mystery Creek #199 in Washington

Added by Troutnut on July 30, 2019

Collected July 27, 2019 from Mystery Creek #199 in Washington and added by Troutnut on July 30, 2019

Creno
Grants Pass, OR

Posts: 302

Creno on Aug 5, 2019August 5th, 2019, 3:37 pm EDT

Just getting back to the PC and a good look at your above pics. I don't think this is Gumaga. From what I can see it lacks the divided mesonotum and the metanotal sclerites are the wrong shape/size for Gumaga. The fact that you couldn't see the antennae makes me think they are right next to the eye. The rest of the characters also suggest this is one of the Lepidostoma and the case suggests pluviale group, which are very common in that part of the world.

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Aug 6, 2019August 6th, 2019, 4:10 am EDT

Thanks Dave. I'll move it there.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Blue-winged OlivesBaetis

Troutnut Forum › Specimen Discussion › Don't think it is Gumaga........