Large Lace-border

Lovely find, naturelover! The Brown-bordered Geometer (Eumacaria madopata) does have some similarities but I think the Large Lace-border is a closer match. You were certainly on the right track Ingrid! Here is the page for the Brown-bordered Geometer for comparison: http://bugguide.net/node/view/38894

Its definitely a geometer moth of some kind. The species I suggested is close but may not be the right one. I use BOOKS more than the web. The field would not let me add a book! Peterson Field Guide NE N American Moths Its probably on Bugguide.net