And polluted water stops transmitting mosquitoes emerged from terrible fevers.
After a few days as a pupa, the dorsal surface of the cephalothorax splits and the adult mosquito emerges.
It can be some of the most pleasant north-country fishing: not only is the fishing good, but the mosquitoes and black flies have not yet emerged.
As dusk fell, the notorious mosquito emerged, and we retreated to the car.
Although the area is free of malaria, mosquitoes emerged at dusk.
A few mosquitoes emerged as the evening turned to night so I retreated to my tent.
The adult mosquito emerges from the mature pupa as it floats at the water surface.
How many mosquitoes will emerge depends entirely on how much rain: Think of the place where a puddle was as blanketed with waiting eggs.
When the adult mosquitoes emerge from their pupal case, they leave the infectious intermediary stage of parasites in the water and close off the infection cycle.
And spring, before the leaves and the mosquitoes emerge, is a particularly fine time for seeing wildlife.