I saw several different individuals of this sort; I think it's a Crocus Geometer (Xanthotype sospeta). Nothing with excellent focus, since the better specimen required that I balance on a toilet lid to get a picture, and the other was flying around. I tried removing one from the bathroom, only to have it fly back in, repeatedly. Quite large, though I didn't measure the tiles. 6/27/2014, 6/28/2014, Pine Haven, Wentworth NH.
July 2, 2014