We went camping near MammothCave earlier this week and apparently picked up a stowaway while we were there. I assume she crawled in/on something while I was packing the van before we left the camp site. We only made one stop on the way home (also in Kentucky) and windows were closed the whole trip home.
I think she is a Pheidole queen, but I wanted to make sure before I become too attached to her. She is 6mm long and is most likely from Nolin Lake Kentucky.