Mosquito is a member of the family Culicidae. These insects have a pair of scaled wings, a pair of halteres, a slender body, and long legs. The females of most mosquito species suck blood (hematophagy) from other animals. This blood sucking characteristic has made mosquitoes one of the most deadly vectors known to man, killing millions of people over thousands of years and continuing to kill millions per year.,
Size varies but is rarely greater than 16 mm (0.6 inch). Mosquitoes weigh only about 2 to 2.5 mg (0.03 to 0.04 grain). A mosquito can travel up to 10 km in a night, and fly for 1 to 4 hours continuously at up to 1-2 km/h. Most species are nocturnal or dawn or evening feeders (crepuscular). During the heat of the day most mosquitoes land in a cool place and wait for the evenings. They may still bite if disturbed.