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> > Tiny Mayfly ID help please.

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QuagmireageMarch 28th, 2019, 10:46 am
Somerset, PA

Posts: 4
Hi folks.
I found this nymph in the Keystone Select section of Laurel Hill Creek, Somerset county PA. It's really small(20-24, maybe smaller). Sorry to be so vague. If anyone has an idea what it might be, I'd love to know.


Thanks!
MillcreekMarch 29th, 2019, 5:14 pm
Healdsburg, CA

Posts: 318
Clark - I'm pretty sure this is a member of the Baetidae family. As to the genus your guess is as good as mine. You'll need to dissect the mouth parts to figure out genus.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
QuagmireageMarch 29th, 2019, 5:25 pm
Somerset, PA

Posts: 4
Thanks.
MillcreekMarch 29th, 2019, 5:42 pm
Healdsburg, CA

Posts: 318
The more I look at it the more it looks like it might be an early instar of Baetis tricaudatus. Google it and see what you think.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
KonchuApril 3rd, 2019, 8:44 am
Site Editor
Indiana

Posts: 496
If the tails are banded, rather than a solid color, then this probably is either Baetis flavistriga or something close. The markings on the abdominal terga also remind me much more of flavistriga than tricaudatus.

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