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.

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)

Female Hydropsyche (Spotted Sedge) Caddisfly Adult Female Hydropsyche (Spotted Sedge) Caddisfly Adult

Lateral view of a Female Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Columbia River in Washington

7 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.

What's this?

Sglidster has attached this picture to aid in identification. The message is below.

Sglidster
Posts: 3

Sglidster on Feb 22, 2012February 22nd, 2012, 12:46 pm EST

2 large greenish bugs from kick sample last weekend.

River Derwent, Derbyshire, UK.

Someone said they might be crane fly larvae?

Simon

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Feb 22, 2012February 22nd, 2012, 2:13 pm EST

The one on the left looks like a crane fly larva, Tipulidae. The one on the right looks like a snipe fly larva, Athericidae.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

Konchu

Site Editor
Indiana

Posts: 498

Konchu on Feb 22, 2012February 22nd, 2012, 2:47 pm EST

i agree with Jason

Blue-winged OlivesBaetis

Troutnut Forum › Get Bugs Identified › What's this?