UPDATE: Based on some unscientific web-surfing research, I’m pretty sure this is a Hummingbird Clearwing Moth! Here is some info and a few pictures.
Whatever this thing is, it’s huge! Maybe the size of a small hummingbird or large butterfly. It’s huge, scary, but fascinating! I’m guessing it’s some kind of moth. It has the markings of a bee, but way too large. I asked my Mom to take these pictures, which she happily did…until it CHARGED at her! He, he, he…funny now!
Here is a close up of the back. It was about 6pm at Lake Katherine of Palos Heights, IL, when this picture was taken, I don’t know if that helps any. If any smart person out there in cyberspace can share some knowledge…I would be very thankful!