The noisy buzz they make is the male calling to the female using his vibrating panels, called "tymbals", on his sides. When the female, who cannot buzz, hears the buzz of a male, she searches for him. After they mate, the female will use her ovipositor to cut a line into the branch of a tree and lay her eggs there. Adult cicadas don't usually bite. They are usually green or black. Cicadas can also be eaten. It is eaten in countries like China.