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The adult wasps actually eats nectar, the female stings and paralyses the spider and then drags it to her burrow. There she lays a single egg on it. Because the spider is not dead, the meat stays fresh and the larvae eat the spider alive.

The adult wasps actually eats nectar, the female stings and paralyses the spider and then drags it to her burrow. There she lays a single egg on it. Because the spider is not dead, the meat stays fresh and the larvae eat the spider alive.