Aedes aegypti aren't native to anywhere outside of Africa. Native mosquito species in most other continents don't spread the same diseases that infect humans. Aedes aegypti mostly breed around where humans live since they lay their eggs in containers of stagnant water, other mosquito species live primarily in wetlands and areas that stay moist due to thick vegetation or soil conditions. The native species of mosquitos are a much larger food source than Aedes aegypti for that reason.