Aedes aegypti

Aedes aegypti exists in at least two forms (considered either subspecies or separate species according to different authors), namely A. aegypti formosus (the original wild type found in Africa) and A. aegypti aegypti (the worldwide urban form). The yellow fever mosquito, Aedes aegypti aegypti, has a worldwide distribution in the tropics and subtropics where it is the main vector of both dengue and yellow fever viruses. It can also transmit chikungunya and Zika viruses.