Mosquitoes go through four life stages — egg, larva, pupa, and adult — a process called complete metamorphosis. Each stage occurs in or near water. Understanding these stages helps scientists and communities reduce mosquito populations and control diseases.

Stage 1: The Egg

Female mosquitoes lay 100–300 eggs at a time, usually on the surface of still water or damp areas likely to flood. Some species, like Aedes aegypti, lay eggs individually, while others group them in rafts that float.
Eggs can hatch within 24–48 hours when exposed to water, beginning the next stage of the mosquito life cycle.

🐛 Stage 2: The Larva

Mosquito larvae — often called “wigglers” — live in water and come up to the surface to breathe. They feed on microorganisms and organic matter.
This stage lasts about 4–14 days, depending on temperature and species. Larvae molt several times, growing rapidly before transforming into pupae.

🦋 Stage 3: The Pupa

In this resting stage, the mosquito doesn’t eat. Pupae, known as “tumblers,” remain near the water surface, moving in quick bursts when disturbed.
Inside, the insect undergoes metamorphosis, developing wings, legs, and the structures needed for flight and reproduction.

🦟 Stage 4: The Adult Mosquito

The fully formed mosquito emerges from the pupal skin and rests on the water’s surface until its body hardens.

• Males typically feed on nectar and live only about a week.
• Females live longer — up to a month — and require blood meals to produce eggs.

Within days, the cycle repeats. Under warm, humid conditions, the entire life cycle can complete in as little as 8–10 days.