I found this asleep in my garage here in SE Pennsylvania. Had to move it, saw it very closely. At least 4.5" by 3" tall. Mine seemed to match the Imperial Moth, probably female. See if this link helps: http://www.museum.state.il.us/ismdepts/zoology/lepidoptera/gallery.html?RollID=roll01&FrameID=Eacles_imperialis_male_female
Comments (1)