Have you ever seen a "White-lined Sphinx Hummingbird Moth"?

They act like a hummingbird but they are a moth.  It does have a long proboscis and can feed deep into a flower (Mirabillis here).  They zip around like a silent hummingbird.  Never knew there was such a thing and when I ran to get the camera I thought I was going to be taking a picture of a strange, lost, little hummer!