Back in the U.S. -- Red-Spotted Purple (Butterfly)

When I got back to our home in Virginia, there was this strange chrysalis hanging to the doorframe:

This morning, I got to see what kind of butterfly was inside. A "Red-Spotted Purple" had emerged and was still waiting for its wings to dry and stiffen.

A close-up view of the wing edge. This is the underside of the hind wing.

When I returned later, a red stain appeared below the empty chrysalis case. It appears to have dripped from the case.