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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.

Dorsal view of a Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Yakima River in Washington
Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.
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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FredH
FredH's profile picture
Lake Charles , Louisiana

Posts: 108
FredH on Jul 31, 2011July 31st, 2011, 5:30 am EDT
When these little guys are cruising the surface you can watch fish go airborne chasing them.
Shawnny3
Moderator
Pleasant Gap, PA

Posts: 1197
Shawnny3 on Aug 1, 2011August 1st, 2011, 4:39 am EDT
Very cool pattern, Fred. I like the body profile a lot, and the double wing. To this untrained eye, it looks like you've nailed the proportions. Do they float, or are they just for show?

-Shawn
Jewelry-Quality Artistic Salmon Flies, by Shawn Davis
www.davisflydesigns.com
FredH
FredH's profile picture
Lake Charles , Louisiana

Posts: 108
FredH on Aug 1, 2011August 1st, 2011, 6:11 am EDT
Thanks Shawn. The abdomen , thorax and head are created out of thread and deer hair and will float really well. The wings will make it difficult to cast. So I'll probably just dap with it. I was tying the amber wing for special project and it didn't make th cut so it'll get fished . It wont have the motion of the live counter-part but it should cast a siloette the fish are familiar with.I'll let you know how it works.
Fred

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