Beautiful Drama

I approached the butterfly from the left, getting closer and closer, and wondering why it was not scared away. Then I moved a bit to the left and found out.  Its innards were being drained by a Goldenrod Crab spider. This took place on a shrub of Labrador Tea, but I've seen this same drama a number of times on the flowers of Spreading Dogbane, as described in my previous post, and also on several species of Asteraceae such as Salsify and Daisies. Click on the photo for a larger image.