This moth surprised us when we spotted it a few years ago on a crepe myrtle at our previous house in Montgomery, Alabama. It is a Tersa Sphinx. I thought it a svelte and stylish creature and grabbed the camera. It took me some time to determine what sort of moth it was. It is not considered rare but I had not seen it before or since. The caterpillars feed on catalpa and pentas among other things, and are large and green like those of many other sphinx moths. Perhaps I need to plant some host species and attract some at our current location. I would like to see one again.