The lady moth protest too much

We were so sad to find this dead moth splayed on the limestone steps of hubby’s office…

…but sadness didn’t prevent me from trying to ID it (because any science-minded person worth her salt would). It looks suspiciously like a Big Poplar Sphinx Moth though Indiana is not in its range. We are in the range of the Modest Sphinx Moth, but the coloration isn’t quite like that. Hmmm.

If you happen to know what it could be, do tell me on Twitter @TeresaRobeson!