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

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Doroneuria baumanni (Golden Stone) Stonefly Nymph Doroneuria baumanni (Golden Stone) Stonefly Nymph

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Sears Creek in Washington

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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.

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Stonefly Genus Isocapnia (Little Snowflies)

Genus Range

source

Map of specific collection sites

Specimens of the Stonefly Genus Isocapnia

1 Female Adult

Female Isocapnia hyalita (Little Snowfly) Stonefly Adult

1 Picture

Female Isocapnia hyalita (Capniidae) (Little Snowfly) Stonefly Adult from the Touchet River in Washington

Collected April 20, 2012 from the Touchet River in Washington

Added by Bnewell on April 26, 2012

Collected April 20, 2012 from the Touchet River in Washington and added by Bnewell on April 26, 2012

1 Nymph

Isocapnia integra (Little Snowfly) Stonefly Nymph

1 Picture

Isocapnia integra (Capniidae) (Little Snowfly) Stonefly Nymph from the Flathead River-upper in Montana

Collected December 18, 2009 from the Flathead River-upper in Montana

Added by Bnewell on June 26, 2011

Collected December 18, 2009 from the Flathead River-upper in Montana and added by Bnewell on June 26, 2011

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