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.

My then-girlfriend, now-wife took this picture with my camera.

From Toughannock Creek in New York

Stream photos

Featured on the forum

Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf

Re: UV spectrum and trout
In General Discussion by Martinlf

Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)

Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)

Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

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.

9 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.

Another horned critter

Male Drunella spinifera (Western Slate Olive Dun) Mayfly Nymph

8 Pictures

Lateral view of a Male Drunella spinifera (Ephemerellidae) (Western Slate Olive Dun) Mayfly Nymph from Mystery Creek #199 in Washington

In a bucket full of Drunella coloradensis nymphs, this was the only specimen of Drunella spinifera (and the first one I've found anywhere).

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

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on Aug 17, 2020August 17th, 2020, 4:00 am EDT

Woah! Another cool drunella. So much out there we often don't have a clue about. Thanks, Jason.

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

Blue-winged OlivesBaetis

Troutnut Forum › Specimen Discussion › Another horned critter