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Photo#292106
Mayfly - Siphlonurus securifer

Mayfly - Siphlonurus securifer
Groton, Middlesex County, Massachusetts, USA
June 20, 2009

Moved
Moved from Siphlonurus.

Siphlonurus securifer
it is.

Thanks Lloyd
I have it saved for Don.

Siphlonuridae
Looks like a male Siphlonurus imago.

 
so,
wrong again. The adult mayflies just don't make sense to me.

Save
for me please. It may be a male Chor*oterpes. I trust Lloyd will have a more accurate name for it.

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