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Baetid
I found a few of these" exuva?" on a wooden exercise beam in the park. Very tiny. Probably 2mm long and 1/5th of a mm in diameter. Looks like an insect eclosed from here and the exit seems to be on top?
riparian.
8 Comments
From just the subimago exuvia it is near impossible to be sure. it does indicate 3 tails, size and time of years helps. It is either and most likely from Ephemerellidae , or Baetidae. The exuvia of adults if not often reviewed. I am looking closer and I think we can remove Ephemerellidae as the lateral spirical folds do not extend to projections from 4-9, it may actually be Callibaetis based on the projection on 7-8.
http://en.wikipedia.org/wiki/Baetidae#me...
Baetid?
Thanks Lucky Logan.
Looks pretty similar
logan,I think you are correct. Compare with this link!!
http://www.naturebob.com/zenphoto/index....
Could very well be logan!!
It looks like a Mayfly Nymph exoskeleton minus the head, which a is were they exit I believe