This praying mantis is a nymph stage, so I can't be 100% sure of the species, but seems like a European Mantis (Manis religiosa). You can tell that it is a nymph because it doesn't have it's wings yet, like the angel in It's a Wonderful Life. But here we use the word of the day: Paurometabolous. This lies somewhere between Hemimetabolous and Holometabolous on the metamorphosis scale. Essentially it means that after the mantis' eggs hatch the little nymphs look pretty much like tiny adults (and act like tiny adults), only instead of full wings they might have just some small wing buds. They will get their wings after a final molt into an adult.
Keith Christenson - Wildlife Biologist