Like other orb-weaving spiders, banded argiopes (Araneae: Araneidae: Argiope trifasciata) build big, elaborate webs to ensnare the insects that they feed upon. Some insects, however, turn the tables on these large predators. A number of different wasps hunt spiders like these, including the appropriately-named spider wasps (Hymenoptera: Pompilidae).
Although the adult wasps feed on pollen and nectar from flowers, their young larvae feed on meat. Female wasps dig nests in loose soil like sand, but before laying their eggs they provision their nests with food.
Females in the spider wasp genus shown here (Episyron) specifically collect orb weavers like banded argiopes. A female will fly up to a spider on its web and sting it, quickly paralyzing the spider. The female will then carry the spider back to her nest and lay an egg upon it. When the egg hatches the larva will feed on the immobilized but still-living spider. After such a hearty meal, the wasp larva will pupate before emerging as part of the next generation of adults.