The main difference between the two genders is that male mosquitoes do not bite. Females need the protein in the blood for the development of their eggs. Before it can lay a batch of eggs, the female mosquito requires a blood meal.
The life span of female mosquitoes is much longer than males. Adult females live one to two months while males only live for a few days.
The last anatomical difference between the two is that male antennae are bushy while females are not.