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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.

Enfield Creek in New York

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly LarvaHydropsyche (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.

Updates from April 13, 2004

Updates from April 13, 2004

Underwater photos by Troutnut from Eighteenmile Creek in Wisconsin

Hundreds of cased caddisfly larvae live on this log in a small brook trout stream. From Eighteenmile Creek in Wisconsin
Cased caddis larvae blanket this section of stream bottom. From Eighteenmile Creek in Wisconsin
Hundreds of cased caddis larvae cling to sparse weed growth in the sand under heavy current. From Eighteenmile Creek in Wisconsin
Here's the view from inside an algae bloom in a still backwater along a pristine small stream. From Eighteenmile Creek in Wisconsin
Eighteenmile Creek in Wisconsin
Eighteenmile Creek in Wisconsin

Closeup insects by Troutnut from the Namekagon River in Wisconsin

Male Ephemerella subvaria (Hendrickson) Mayfly Dun
3 Pictures
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Dun from the Namekagon River in Wisconsin
Added by Troutnut on January 25, 2006
Collected April 13, 2004 from the Namekagon River in Wisconsin and added by Troutnut on January 25, 2006

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