looks like P. ciliata. Excellent mantis. A spearer type, very active. I would give him a 15 gallon if you can, but a 10 is minimum. Give it a nice sized rock to dig under (they must have at least 3 inches of sand) or give it some PVC about 1.5x The diameter of the mantis. Should have 3" of sand at least, as they like to burrow. Feed it a live ghost shrimp, or they can even take crabs, or for the best show a fish such as a cromis. Will pretty much leave your cleanup crew alone.
Dan