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Tenodera aridifolia sinensis
Hi David, great spotting!
However, I do believe you have found a beautiful Chinese Mantid. Take a look at the link I provided with the ID suggestion to compare.
Sphodromantis viridis (also known as the Giant African Mantis) are not found in the US to my knowledge and have different coloration that includes white spots on the outer wings:
http://en.wikipedia.org/wiki/File:Sphodr...