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unidentified mayfly - Anthopotamus verticis

unidentified mayfly - Anthopotamus verticis
Bainbridge, Lancaster County, Pennsylvania, USA
August 7, 2011
Size: 9.4 mm
A couple of blocks from the Susquehanna. ID appreciated; feel free to frass if not useful.

Moved from Mayflies.

Anthopotamus verticis
Hi Anita-

Nice find. This mayfly male imago is of genus Anthopotamus, probably A. verticis, and will be very useful in the guide.

Many thanks.


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