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.

Middle Fork Snoqualmie

From the Middle Fork Snoqualmie River in Washington

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.

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Probably another E. vitreus

Male Epeorus vitreus (Sulphur) Mayfly Spinner

4 Pictures

Lateral view of a Male Epeorus vitreus (Heptageniidae) (Sulphur) Mayfly Spinner from Penn's Creek in Pennsylvania

Collected May 25, 2007 from Penn's Creek in Pennsylvania

Added by Troutnut on June 4, 2007

Collected May 25, 2007 from Penn's Creek in Pennsylvania and added by Troutnut on June 4, 2007

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Oct 28, 2008October 28th, 2008, 8:10 am EDT

This looks like a male vitreus spinner. Although blurry, the terminalia look about right. The dark humeral vein and the little dark marks on the middle rear of segments 3-5 and 7-9 also seem to fit.

Blue-winged OlivesBaetis

Troutnut Forum › Specimen Discussion › Probably another E. vitreus