I never heard of them before many people posted photos of them this year. I did see one this summer myself, quite by accident. A friend, who is quite the naturalist and photographer, assured me they were around. A little research showed that I had actually seen one in larval stage a few years ago. My DH called it a hookworm and it was going to town on some tomato plants.
Fav! I have taken a photo of one of these too! I was so confused...was it a hummingbird? A moth? I had never seen one before and never taken a pic of a hummingbird. I was so excited! Then looked it up and found out it was a hummingbird moth. I was going to post but didn't think I got a clear enough shot. I saw mine in Truckee, CA.