A mosquito is a flying insect, that has long legs and a thin body. The range of length and weight are great, but mosquitoes are normally quite small and less than 16 mm long and 2.5 mg in weight. Mosquitoes have six legs and a pair of translucent wings. The mosquito's head contains two compound eyes and a pair of long antennae. The antennae are used by the mosquito to smell. The males have bushier antenna which include auditory receptors so they can hear female mosquitoes as they fly. The head also has an elongated tube called a proboscis that is used for feeding. Mosquitoes also have a pair of halteres, halteres stabilize the flight of the mosquito.

Mosquitoes are present in all six of the major continents. The mosquito is a nocturnal insect, and flies during the evening and night. During the day, mosquitoes rest in the shade or other cool areas.

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