In Europe, the Asian (or "Yellow-legged") Hornet (Vespa velutina) is a predator of insects such as honeybees, hoverflies, and other wasps, and poses serious risks to apiculture, biodiversity and pollination services. This hornet can measure up to 4 cm in length and, like all other social wasps, is capable of delivering a painful sting, although it is not aggressive by nature.