The katipo (Latrodectus katipo) is an endangered species of spider native to New Zealand. It is a member of the genus Latrodectus, along with the Australian redback spider (L. hasseltii), and the North American black widow spiders. The species is venomous to humans, capable of delivering a comparatively dangerous spider bite. Katipo is a Māori name and means "night-stinger". It is a small to medium-sized spider with the female having a round black or brown pea-sized body.