Octogomphus specularis
I seen something flying around that I thought was an insect, but it was huge. When I caught up with it I realized it was a dragonfly (unknown) flying with his butterfly dinner!
As for the butterfly, since there is only one row of orange dots on the underwing; my guess is a Pipevine Swallowtail; Battus philenor. Hard to know for sure.
The abdominal tip resembles a small pair of grappling hooks, thus the name. Another feature is the widely separated eyes, a feature shared the "Petaltail" dragonflies. Photo of the face: http://bugguide.net/node/view/56642
Lat: 35.13, Long: -92.93
Spotted on May 23, 2012
Submitted on Jul 26, 2012