Back to the lilacs

The last time I was taking pics of the lilacs I saw what I thought were hummingbirds but smaller.  Long story short they were Clear winged Hummingbird Moths (Hemaris thyspe) which I had never before.  There were several flying around their wing beats were just like a hummingbird and hovered at the flowers to feed.  I took some pics but they were just moving to fast but finally I enlarged one of my pics to see this crop. This one would be about 35mm.