Spider wasps (family Pompilidae) are wasps that hunt spiders to feed their offspring. The female’s toxic sting paralyses the spider, which she then drags to her nest. There she lays a single egg on the paralysed spider (which stays fresh since it’s still alive). The egg hatches into a larva, which slowly consumes the protein-rich spider. The larva then pupates and eventually hatches as an adult wasp. Adult spider wasps eat pollen.