Sexual cannibalism is common among praying mantises. The female will bite off and chew on the male’s head just after, or even during, mating. This behaviour will not stop males from pumping sperm, because the copulatory movement is controlled in the abdomen, not the head.
The praying mantis is named for its prominent forelegs that are always bent and held together as the position of prayer. It is often mistakenly named ‘preying’ mantis, although this is also quite true! They are formidable predators of other insects, and even small animals such as lizards and hummingbirds!