Mosquito
The mosquito (pl. mosquitos, mosquitoes) 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 from other animals. Size varies but is rarely greater than 15 mm (0.6 inch). Mosquitoes weigh only about 2 to 2.5 mg (0.03 to 0.04 grain). They can fly at about 1.5 to 2.5 km/h (0.9 to 1.6 mph) and most species are nocturnal.
Mosquitoes are believed to have evolved ~170 million years ago during the Jurassic era (206 - 135 million years ago) with the earliest known fossils from the Cretaceous era (144 – 65 million years ago). They evolved in the land mass that is now South America, spreading initially to the northern continent Laurasia and re entering the tropics from the north. Ancestral mosquitoes were ~3 times the size of the extant species and they are a sister group to the Chaoboridae (biting midges).
The family Culicidae belongs to the order Diptera and contains ~3500 species in three subfamilies: Anophelinae (3 genera), the Culicinae (9 genera and >80% of all the species) and the Toxorhynchitinae (1 genus). The genera include Anopheles, Culex, Psorophora, Ochlerotatus, Aedes, Sabethes, Wyeomyia, Culiseta, and Haemagoggus. Within the family Anophelinae six subgenera are recognized: Stethomyia, Lophopodomyia, Kerteszia, Nyssorhynchus (all South American), Cellia (Old World only) and Anopheles (worldwide).
Mosquitos are principally nectar feeders with only the females requiring a blood meal. In contrast to this rule the Toxorhynchites never drinks blood. This family includes the largest of the extant mosquitoes and their larvae are predatory on the larvae of other mosquitoes. Attempts have been made in the past to use these as mosquito control agents but with variable success.
"Mosquito" is a Spanish word meaning little fly, and its use dates back to about 1583. Before then, they were called "biting flies" in English, but the term "mosquito" was adopted to prevent confusion with the house fly. The word derives from Sanskrit 'maksh' (fly) via the Latin word 'musca' (fly) and the Italian 'moschetta' or Spanish 'mosquito' (little fly). The French word is 'moustique'.
The female mosquito (in almost all species) sucks the blood of mammals, including humans - commonly referred to (incorrectly) as a 'bite.' Mosquito bites often swell up hours after happening, causing a red ringed white bump about a centimeter in diameter. This bump can itch for days and over-scratching the bite can cause it to bleed. Mosquito bites can transmit diseases, such as malaria and West Nile Virus, so authorities in many areas take measures to reduce mosquito populations through pesticides or more organic means. An easy way to reduce mosquito populations in a residential area is the removal of standing water (where mosquitoes breed), and the use of repellents, such as citronella candles.
Mosquitoes are believed to have evolved ~170 million years ago during the Jurassic era (206 - 135 million years ago) with the earliest known fossils from the Cretaceous era (144 – 65 million years ago). They evolved in the land mass that is now South America, spreading initially to the northern continent Laurasia and re entering the tropics from the north. Ancestral mosquitoes were ~3 times the size of the extant species and they are a sister group to the Chaoboridae (biting midges).
The family Culicidae belongs to the order Diptera and contains ~3500 species in three subfamilies: Anophelinae (3 genera), the Culicinae (9 genera and >80% of all the species) and the Toxorhynchitinae (1 genus). The genera include Anopheles, Culex, Psorophora, Ochlerotatus, Aedes, Sabethes, Wyeomyia, Culiseta, and Haemagoggus. Within the family Anophelinae six subgenera are recognized: Stethomyia, Lophopodomyia, Kerteszia, Nyssorhynchus (all South American), Cellia (Old World only) and Anopheles (worldwide).
Mosquitos are principally nectar feeders with only the females requiring a blood meal. In contrast to this rule the Toxorhynchites never drinks blood. This family includes the largest of the extant mosquitoes and their larvae are predatory on the larvae of other mosquitoes. Attempts have been made in the past to use these as mosquito control agents but with variable success.
"Mosquito" is a Spanish word meaning little fly, and its use dates back to about 1583. Before then, they were called "biting flies" in English, but the term "mosquito" was adopted to prevent confusion with the house fly. The word derives from Sanskrit 'maksh' (fly) via the Latin word 'musca' (fly) and the Italian 'moschetta' or Spanish 'mosquito' (little fly). The French word is 'moustique'.
The female mosquito (in almost all species) sucks the blood of mammals, including humans - commonly referred to (incorrectly) as a 'bite.' Mosquito bites often swell up hours after happening, causing a red ringed white bump about a centimeter in diameter. This bump can itch for days and over-scratching the bite can cause it to bleed. Mosquito bites can transmit diseases, such as malaria and West Nile Virus, so authorities in many areas take measures to reduce mosquito populations through pesticides or more organic means. An easy way to reduce mosquito populations in a residential area is the removal of standing water (where mosquitoes breed), and the use of repellents, such as citronella candles.
Source: wikipedia, under GFDL
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