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.

The Middle Fork of the Koyukuk River in Alaska

Stream photos

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Skwala (Large Springfly) Stonefly Nymph Skwala (Large Springfly) Stonefly Nymph

Dorsal view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington

This Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.

6 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.

Stonefly Genus Paraleuctra (Tiny Winter Blacks)

Where & when

In 1 records from GBIF, adults of this genus have been collected during June (100%).

Genus Range

source

Map of specific collection sites

Specimens of the Stonefly Genus Paraleuctra

1 Adult

Paraleuctra occidentalis (Tiny Winter Black) Stonefly Adult

1 Picture

Paraleuctra occidentalis (Leuctridae) (Tiny Winter Black) Stonefly Adult from the Touchet River in Washington

Members of the family Leuctridae are usually easily identified to family due to the "rolled" wing. They are small, nearly 1/4 " in length, black in color and emerge in early spring.

Collected March 6, 2012 from the Touchet River in Washington

Added by Bnewell on March 20, 2012

Collected March 6, 2012 from the Touchet River in Washington and added by Bnewell on March 20, 2012