I've got a little visitor today.
@awsh
It has nice inverted V antennas !
@awsh 4" is impressive, even more translated in metric units ! (20cm)
In which part of the US did you take this picture ?
Here, the largest insect is the "Praying Mantis", the little green serial killer we call "Mante Religieuse", and it's under 8cm (3").
@F4JWJ It was near Atlanta, Georgia. It looks like it might be a Carolina Mantis, but Wikipedia says they only get to about 2.5". This one definitely seemed larger, but that might be faulty memory on my part.
I usually see more of the green Chinese Mantises around here. They like to hang out in the garden and guard my tomato plants.