The War of the Wasp "Pepsis" with the Tarantula

During the reproductive season, the giant wasp called "pepsis" does not bother with building a nest or incubating, contrary to other animals. It is equipped with a totally different reproductive mechanism by its nature. This wasp feeds and protects its eggs by using the biggest and most poisonous spider on earth called the tarantula.

Tarantulas generally hide themselves in the tunnels they dig underground. This wasp, however, is equipped with special sensors sensitive to the smell of the tarantula. Therefore, it is not so difficult for it to find its prey. The tarantula, however, is not a creature that is often found. For this reason, the wasp sometimes has to walk for hours on the ground to find a single tarantula. During this trip, it does not neglect to clean its sensors regularly so that they do not lose their sensitivity.

When the wasp finds the tarantula, a war breaks out. The main weapon of the tarantula is its fatal poison. At the outset of the struggle, the tarantula immediately bites the wasp. Yet these wasps (pepsis) are protected against the poison of the tarantula by possession of a special antidote and they are not affected by the strong poison of the tarantula owing to that special secretion in their body.

At this stage, the tarantula has nothing more to do against the wasp. It is now the wasp's turn to bite. The wasp bites the tarantula on the upper left part of its stomach and discharges its poison there. It is interesting that the wasp especially chooses this part in the tarantula's body, because this is the most sensitive section of the tarantula. The most interesting part of the event starts after this stage: the poison of the wasp is placed in its body not to kill the tarantula but to paralyze it.

Carrying the paralyzed tarantula to a suitable place, the wasp digs a hole there and puts the tarantula in the hole. Then the wasp makes a hole in the stomach of the tarantula and leaves only one egg in it.

Within a few days, the offspring of the pepsis pops out of the egg. The offspring feeds on the flesh of the tarantula and takes shelter in its body until the cocoon period when it will undergo metamorphosis.

The pepsis has to find a tarantula for each one of the twenty eggs it will lay throughout the reproductive season.

This incredible method shows us that the reproductive system of this wasp is specially created in accordance with the nature of the tarantula. Otherwise, it is by no means possible to explain the presence of the antidote in the wasp's body against the poison of the tarantula, or its secreting a fluid that paralyses the tarantula.