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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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Hellgramite
Southern calif.

Posts: 45
Hellgramite on Jan 11, 2009January 11th, 2009, 9:25 am EST
Catch and Release GOOD or BAD?
Shawnny3
Moderator
Pleasant Gap, PA

Posts: 1197
Shawnny3 on Jan 11, 2009January 11th, 2009, 11:38 am EST
Do a quick search and you'll find that this topic has been discussed on this forum a number of times from slightly different angles. Here's one of them:

http://www.troutnut.com/topic/748

I don't mean to stunt the thread, because many may want to weigh in on this topic, I just wanted folks to be aware that there are a lot of other similar threads that might be worth digging up, especially since some very knowledgeable people who posted in previous threads are currently on hiatus.

-Shawn
Jewelry-Quality Artistic Salmon Flies, by Shawn Davis
www.davisflydesigns.com

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