Cockroaches mate by using pheromones to communicate. They also engage in courtship rituals to attract females. Female cockroaches, for example, will raise their wings to expose their membranes, which attract the male. The male will then approach the female and back into her, exposing his own sperm gland and secreting it into the female’s genital chamber. The mating phase will last for 90 minutes.
Cockroaches also lay eggs. Their eggs have a protective protein casing known as an ootheca. Both of these parts of the roach are needed to make an egg. The cockroach egg hatches after laying the eggs. Cockroaches mate by releasing a pheromone, which affects other animals’ behavior.
Cockroaches can lay up to three batches of fertilized eggs in succession. The sperm from these mate cycles is stored internally and can be used as needed. Both sexes must have access to food, water and a suitable environment to breed. The average lifespan of a cockroach is twenty to thirty weeks. A healthy cockroach colony contains at least a million cockroaches.
Cockroaches mate during different seasons. During the warmer months, the females are more active. In some cases, female cockroaches reproduce even without a male cockroach. A female can reproduce without a male, but she will mate with another cockroach if she finds a suitable environment.