Life Cycle of an Aedes Mosquito

Under optimal conditions, the egg of an Aedes mosquito can hatch into a larva in less than a day. The larva then takes about four days to develop into a pupa, from which an adult mosquito will emerge after two days. Three days after the mosquito has bitten a person and taken in blood, it will lay eggs, and the cycle begins again.

Did you know?

  • 1. Only the female Aedes mosquito bites as it needs the protein in blood to develop its eggs.
  • 2. The mosquito becomes infective approximately seven days after it has bitten a person carrying the virus. This is the     extrinsic incubation period, during which time the virus replicates in the mosquito and reaches the salivary glands.
  • 3. Peak biting is at dawn and dusk.
  • 4. The average lifespan of an Aedes mosquito in Nature is two weeks.
  • 5. The mosquito can lay eggs about three times in its lifetime, and about 100 eggs are produced each time.
  • 6. The eggs can lie dormant in dry conditions for up to about nine months, after which they can hatch if exposed to     favourable conditions, i.e. water and food.