Final answer:
The wasp that preys on tarantulas for its larvae's nourishment is the tarantula hawk, a parasitoid wasp. This reproductive strategy guarantees food for the larvae through the host's eventual demise, exemplifying parasitoid behavior in nature.
Step-by-step explanation:
The kind of wasp that stings tarantulas, lays its eggs on them, and puts them in a hole for the larva to eat is known as a tarantula hawk or parasitoid wasp. These wasps are known for their particularly painful sting and unique reproductive strategy where they use the tarantula as a living host for their larvae. The parasitoid behavior is fascinating and gruesome, as it ensures that the developing larvae have a fresh and abundant food source, which is the immobilized, yet alive, host spider.
The term 'parasitoid' is key here, differentiating these creatures from standard parasites. Parasitoids typically kill their hosts, whereas parasites generally do not. This behavior is also observed in various other interactions in nature, such as some fungi that are described as 'entophagous', which consume insects similar to the way parasitoid wasps consume tarantulas. As a survival strategy, this form of reproduction ensures that the offspring have a secure beginning to life, but at the cost of the host creature.