Its kinda tough to tell from the pic but based on its size and coloration I it could be a female O. scyllarus or Peacock mantis. The females usually have a more olive color to their back. But if you want a sure ID i'd go to a certain other online site where dr. caldwell can probably answer with farely good certainty on the sp. If you don't know which one I'm talking about shoot me an email and I'll tell ya.
Aaron