Gnat vs. Mosquito



Any small insect of the order Diptera, specifically within the suborder Nematocera.


A small flying insect of the family Culicidae, the females of which bite humans and animals and suck blood, leaving an itching bump on the skin, and sometimes carrying diseases like malaria and yellow fever.


A blood-sucking dipterous fly, of the genus Culex, undergoing a metamorphosis in water. The females have a proboscis armed with needlelike organs for penetrating the skin of animals. These are wanting in the males. In America they are generally called mosquitoes. See Mosquito.


To fly close to the ground, seemingly without a course.


Any fly resembling a Culex in form or habits; esp., in America, a small biting fly of the genus Simulium and allies, as the buffalo gnat, the black fly, etc.


Any one of various species of gnats of the genus Culex and allied genera. The females have a proboscis containing, within the sheathlike labium, six fine, sharp, needlelike organs with which they puncture the skin of man and animals to suck the blood. These bites, when numerous, cause, in many persons, considerable irritation and swelling, with some pain. The larvæ and pupæ, called wigglers, are aquatic.


any of various small biting flies: midges; biting midges; black flies; sand flies


two-winged insect whose female has a long proboscis to pierce the skin and suck the blood of humans and animals


British usage


Mosquitoes are members of a group of about 3,500 species of small flies within the family Culicidae (from the Latin culex meaning ). The word (formed by mosca and diminutive -ito) is Spanish for .

‘gnat’; ‘mosquito’; ‘little fly’;


A gnat () is any of many species of tiny flying insects in the dipterid suborder Nematocera, especially those in the families Mycetophilidae, Anisopodidae and Sciaridae. They can be both biting and non-biting.

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