How Small Are Mosquito Eggs?

Approximately 200 species of mosquitoes can be found in the United States. The majority of these are in the Culex genus. Some species are found in woodland pools, ditches, and brack water swamps. Others are active in sluggish water, such as stagnant rainwater or old tires. Some are even known to live in freezing environments.

In most species, female mosquitoes lay eggs in clumps of 25 to 100 eggs. In some cases, these are canoe-shaped, elongate, or oval-shaped. Some may be glued together to form rafts. Other species deposit eggs on moist soil or in containers of water.

Some of the more common species are the Culex pipiens and Anopheles walkeri. They lay special “winter eggs” during the fall. These are larger than summer eggs and need to be kept warm in order to hatch.

Some of the mosquitoes in the genus Anopheles lay up to 200 eggs during the adult stage. They sometimes drop these eggs individually. These eggs also have floats attached to their sides. They hatch after a couple of days.

The Culex genus also lays eggs in rafts. These are about 1/4 inch long. They will hatch after three days.

Most of the other species of mosquitoes are deposited in ditches or on moist soil. They can survive in acid water or polluted water, as well. Some can be found in brack water swamps, but they may not survive if they are exposed to unseasonably warm temperatures.