First a belated note: on Sunday, August 31st, 2008 at about 11:30 am, I saw another Giant Swallowtail on the north shore of Lake Stoco; bringing the total to four so far this year. No picture as the butterfly was moving too fast and was out of range before I could bring the camera to bear.
The title is borrowed from a Ray Bradbury story; the "tygers" in these images are Cicindela repanda, a species of Tiger Beetle.
Tiger Beetles are fast runners, good fliers, and have strong jaws, making them well adapted to their role as predators in the food chain.