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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

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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Dave_K has attached these 2 pictures to aid in identification. The message is below.
Posts: 6
Dave_K on Jul 1, 2008July 1st, 2008, 4:23 pm EDT
The mayflys in the attached photos hatch in great numbers for days, maybe weeks on Grindstone Lake near Hayward, Wisconsin. I'd like to know what kind they are, and any patterns recommended to match. Photos were taken June 25, 2008. Thanks, .....Dave
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"Bear Swamp," PA

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GONZO on Jul 1, 2008July 1st, 2008, 4:41 pm EDT
Dave, they are Brown Drakes (Ephemera simulans). The ones in the photos are male spinners. I'll let others suggest patterns for the adults. My favorite is a wiggle nymph pattern designed to imitate the slender burrowing nymphs as they swim toward the surface.
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Posts: 622
Wiflyfisher on Jul 2, 2008July 2nd, 2008, 12:38 am EDT
I have great success during the Ephemera simulans hatch on the rivers by you using an extended-body comparadun dryfly. As Gonzo stated a wiggle nymph works the best imitating the emerging nymphs.
Posts: 6
Dave_K on Jul 2, 2008July 2nd, 2008, 3:35 pm EDT
Thanks very much GONZO and Wiflyfisher. While I'm more likely to fish for walleye in 15 feet with a split shot and leech, I won't go back to Grindstone without a brown drake pattern. Dave K

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