History of the Mosquito

She’s less than a quarter-inch long, has six legs, and has been a BIG TIME disease spreader thoughout history and world wide. The female mosquito is devious and diabolical, and she uses scent to find us and is attracted by the lactic acid and other ingredients in our perspiration. She also senses the carbon dioxide in our exhalations and follows the slipstream back to our faces. So how did this bug get so far in the world?