Day 213/17. Not more Lilies?

Yes, I'm sorry, but it's another Lily picture today. This year has been truly spectacular for our Lilies and this bunch are the best of the bunch.....

What I have noticed, and it puzzles me, is that there seems to be a constant flow of wasps arrriving onto the petals on these huge flowers. They do not touch the pollen or go inside the depths of the flower for nectar or anything. They seem to stay on the petals themselves......Could it be that the petals of Lilies contain wasp beer?