Praying Mantis or preying mantis?!
They are in fact named for the typical "prayer-like" stance. The word mantis derives from the Greek word mantis for prophet or fortune teller. These are funny and sad in a particular way, for during copulation the male dies. The female may start feeding by biting off the male’s head (as with any prey), and if mating had begun, the male’s movements may become even more vigorous in its delivery of sperm. Early researchers thought that because copulatory movement is controlled by ganglion in the abdomen, not the head, removal of the male’s head was a reproductive strategy by females to enhance fertilisation while obtaining sustenance.
If the human kind, the females espl. possess some kind of spell that if any male tries to molest or rape she could order his head plucked off from the base of his neck. WOW.