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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.

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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Ephemerella aurivillii Mayfly Nymph Pictures

This nymph hatched out in my aquarium into this dun.

Ruler view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska The smallest ruler marks are 1 mm.
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Dorsal view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Ventral view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska

This mayfly was collected from Nome Creek in Alaska on July 10th, 2011 and added to Troutnut.com by Troutnut on July 13th, 2011.


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Ephemerella aurivillii Mayfly Nymph Pictures

Collection details
Location: Nome Creek, Alaska
Date: July 10th, 2011
Added to site: July 13th, 2011
Author: Troutnut
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