text: Well mosquitoes play a huge role in their interactions with humans.  One specie called of mosquito carries Malaria. Did you know that Malaria is the number killer in the world today?  Without mosquitoes perhaps there would be a lot more people living a lot longer.  I'm not saying the mosquitoes purpose is to hold population in check or anything. I only assert that they aren't just a nuisance, they have a big role in the world!