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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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington

This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.

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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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Troutnut.com User Creno (Dave Ruiter)

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Real Name

Dave Ruiter

Location

Grants Pass, OR

Biography & Thoughts

Dave Ruiter (username Creno) was one of the all-time most valuable and prolific contributors to the Troutnut.com community, generously sharing his deep knowledge as a professional caddisfly expert and helping me with countless caddisfly identifications. Sadly, he passed away in 2021 at age 73. On Trichoptera.org I found a touching tribute to him and wanted to share it in his profile here. —Jason/Troutnut