Native SpeciesMayfly nymph

Ephemeroptera (order)
FOUND by RedGroup
ID Confirmed
Quality checked by RedGroup1
Peer reviewed by RedGroup1
Field Notes
The weather was partially cloudy and was about 50°F outside. The grass was wet and the trail was muddy. There were fallen down trees across the stream and trees lining the bank of the stream.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
We think we found the Mayfly Nymph. The Mayfly Nymph should have three feather like tails and six legs. It could not be the Stonefly Nymph because Stonefly Nymphs have only two feather like tails. This nymph has three tails like the Mayfly Nymph should.
Photo of my evidence.
Our Mayfly Nymph was about 1 centimeter long. Most Mayfly Nymphs are between .635 centimeters long and 2.54 centimeters long. The Stonefly Nymph are between .3175 centimeters and 3.81 centimeters long. So this Nymph is a Mayfly Nymph because it is 1 centimeter long which the Stonefly Nymph could be but are usually longer.
Photo of my evidence.
The Mayfly Nymph has hairy abdomens and the Stonefly Nymph has a nice, smooth abdomen. This nymph has a hairy abdomen and the Mayfly Nymph has a hairy abdomen.
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Ephemeroptera (order)
Common name:
Mayfly nymph
Count of individuals: 
How big is it?: 
0 - 2 cm
Is it male or female?: 
Can't tell
Sampling method: 
Photo of our sampling method.
Place Studied
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Map this species
N 45.192320 °
W -69.230900 °
Observation Site Information
A photo of our study site.
Coastal - Beach or dune
Trip Information
School Stream Water Quality Monitoring 2014
Trip date: 
Tue, 2014-05-20 08:05
Town or city: 
Type of investigation: 
Species and Habitat Survey
MIDAS Code: 
Habitat Observations
Species diversity: 
4 different species
Evidence of vectors: 
Walking trail
Water temperature: 
Dissolved oxygen: 


Wow, RedGroup. You guys did an absolutely fantastic job. Not only did you find a really beautiful mayfly, but you also made a really awesome sketch that captures its beauty! Great, great job! I think this deserves to be in the Best Of page for Vital Signs (maybe it will happen??).

Keep up the good work, and I hope you keep sketching all the cool things you find in nature!