Upon finding a cicada, the female wasp paralyzes it
and carries it back to her underground burrow, where she lays an egg on it. When
the egg hatches, the larvae eats the cicada. What a way to go! There's a website
with good photos and info on these guys out there.
Days after I told my other friend Matt of the existance of these large wasps,
he happened to actually see one doing its thing, and luckily for me had his camera
on hand to get these shots: