Aedes aegypti (Linnaeus), also known as the yellow fever mosquito belong to the subfamily Culicinae in the family Culicidae. All mosquitoes are classified in this family and there are about 3600 species of mosquito world wide (see mosquito taxonomy). Originating from Africa, Ae. aegypti is now globally present in all tropical and subtropical regions. This mosquito species probably arrived in the Americas through the European exploration and colonization (Nelson, 1986). The adult of yellow fever mosquito is a small to medium-sized mosquito, approximately 4 to 7 millimeters. As a holometabolous insect, a complete metamorphosis with an egg, larva, pupa, and adult stages. After blood meal, females produce on average 100 to 200 eggs per batch depending on the size of the blood me
al. Usually eggs are laid in several places at different times (Clements, 1999). Ae. aegypti can have three polytypic form including domestic, sylvatic, and peridomestic.
Eggs of Ae. aegypti are long, smooth, ovoid shaped, and approximately one millimeter long. When first laid, eggs appear white but within minutes turn a shiny black (Foster and Walker 2002).
In general females are larger than males, and can be distinguished by small palps tipped with silver or white scales. Males have plumose antennae, whereas females have sparse short hairs. The adult life span can range from two weeks to a month depending on environmental conditions (Maricopa, 2006).
Yellow fever mosquitoes are container-inhabiting mosquitoes; often breeding in unused flowerpots, spare tires, untreated swimming pools, and drainage ditches. They thrive in urbanized areas, in close contact with people making them an exceptionally successful vector. Aedes aegypti are extremely common in areas lacking piped water systems, and depend greatly on stored water for breeding sites. Male and female adults feed on nectar of plants; however, females blood feed primarily on humans in order to produce eggs, and are active in the daytime. Eggs have the ability to survive desiccation for long periods of time, allowing eggs to be easily spread to new locations.
Bioecology of Aedes aegypti
The bioecology of Aedes aegypti is similar to that of most mosquito species.