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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.

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.

Female Stenonema (March Browns and Cahills) Mayfly Dun Pictures

I collected this female dun together with a male. She's fairly damaged but at least you can see the colors.

This mayfly was collected from the Namekagon River in Wisconsin on May 27th, 2005 and added to Troutnut.com by Troutnut on May 22nd, 2006.

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Female Stenonema (March Browns and Cahills) Mayfly Dun Pictures

Collection details
Location: Namekagon River, Wisconsin
Date: May 27th, 2005
Added to site: May 22nd, 2006
Author: Troutnut
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