Native SpeciesMayfly nymph

Ephemeroptera (order)
FOUND by CAGgirls
ID Questioned
Quality checked by Yes
Peer reviewed by Intermediate
Field Notes
We are happy because we got to go into the river and explore. Some problems we ran into were, our net broke and water got into my boots. We see the water rushing by our legs and the sky is gray. We can hear kids screeching and indistinguishable chatter. The river smells weird. I was surprised to find a huge crayfish, I thought they were small.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
It has three tails so we think we found a Mayfly nymph.
Photo of my evidence.
It has six legs so we think we found a Mayfly nymph.
Photo of my evidence.
It is a yellow, brownish color so we think we found a Mayfly nymph.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Ephemeroptera (order)
Common name:
Mayfly nymph
Sampling method: 
Photo of our sampling method.
Place Studied
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Map this species
N 45.167759 °
W -69.376983 °
Observation Site Information
A photo of our study site.
Freshwater - In a stream or river
Trip Information
Piscataquis River 2018
Trip date: 
Wed, 2018-09-12 09:30
Town or city: 
Type of investigation: 
Species Survey
MIDAS Code: 


Hello there, Caggirls!

Thanks so much for posting an observation to VS! What a cool specimen you found.

I've been looking at it pretty closely, and I'm wondering if it's a caddisfly, rather than a mayfly. The photos are a bit blurry for me to give a definitive answer here, but mayflies often have "three distinct body segments", while the caddisfly has a hard head and a soft, long body (which is what I see on your specimen -- even though the cases are nowhere to be found!). (I can also only see two tails on one of the specimens in your second photo.)

What do you think? I'd love to hear your thoughts on if the specimens are more like caddisflies or mayflies from your personal experience with them!

Looking forward to hearing from you!

Again, great job, and thanks so much for posting it to VS! Your field notes are wonderful. :-) Sounds like quite a fun day!