Not sure where you live. I'd want to see the whole bush but what I can see looks like my Tea Olive. Unfortureatly I can't smell the blossoms but my neighbor can smell them clear across the street! She says they smell very nice.

Beautiful!

I may be wrong but it could be a bush that is called"Butterfly bush" I have one in my back yard only it is red not white.

What beautiful pic! Thanks

What beautiful pic! Thanks

Looking at the back end of the butterfly, I would say some kind of swallowtails on Honeysuckle.

I say Jasmine. All the butterflies are so beautiful. I love to see butterflies.

Honeysuckle would be my guess.

I love butterflies and nice pics. They are great. I wonder if the bush is a butterfly bush. I am not really sure. Just a guess.

Wonderful pictures - thanks for posting them for us to see!