Culex

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Related to culex mosquitoes: Culex pipiens, Culex tarsalis

Culex

[′kyü‚leks]
(invertebrate zoology)
A genus of mosquitoes important as vectors for malaria and several filarial parasites.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Culex

 

a genus of mosquitoes of the family Culicidae. When laid on the water, the eggs stick to each other in such a way that they form a boat-shaped mass.

There are more than 400 species, of which 20 are found in the USSR, chiefly in the Far East, Middle Asia, and the Caucasus. They are harmful to man as bloodsuckers; some carry the causative agents of such diseases as filariasis, Japanese B encephalitis, and encephalomyelitis. The most common species is Culex pipiens, which feeds on the blood of birds and attacks man primarily in southern regions. It is more often found in populated areas, where it flies into houses. It breeds mostly in ditches, barrels, and pits. There are several generations in a summer, with the greatest numbers occurring at the end of summer and in the fall. It winters in basements and cellars. Culex is not a carrier of the causative agents of human malaria; it can be the carrier of plasmodia which develop in the blood of birds. Countermeasures are the same as those used against mosquitoes of the genus Anopheles.

REFERENCE

Gutsevich, A. V., A. S. Monchadskii, and A. A. Shtakel’berg. Komary: Semeistvo Culicidae. Leningrad, 1970.

A. V. GUTSEVICH

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Foundation spokeswoman Fabiola Tavares on Thursday said the researchers, who will begin capturing Culex mosquitoes in areas near Recife where the virus is known to be circulating, will now proceed toward answering those questions.
Mark-release-recapture studies with Culex mosquitoes (Diptera:Culicidae) in Southern California.
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Even so, adult Culex mosquitoes are relatively more tolerant than other types of mosquitoes against most insecticide applications, making adulticidal control of Culex rather ineffectivei Generally larviciding programmes, with high costs of chemicals, equipment and labour, are uneconomical and unsustainable against Culex vectors of W.
But last week state public health experts reported that traps throughout Massachusetts have caught higher than usual numbers of culex mosquitoes, the kind that normally carry the West Nile virus early in the chain of potential mosquito-bird-human transmission.
Culex mosquitoes, which breed in stagnant water high in organic matter, are the most common source of West Nile virus, encephalitis, and other diseases.
"A total of 11,263 mosquito pools from 410 counties in 43 states and the District of Columbia tested positive for WNV." Of these, 64% were made up of Culex mosquitoes, and "control of Culex mosquitoes remains critical to reducing risk for human WNV disease," the CDC said.
'A total of 11,263 mosquito pools from 410 counties in 43 states and the District of Columbia tested positive for WNV.'" Of these, 64% were made up of Culex mosquitoes, and "'control of Culex mosquitoes remains critical to reducing risk for human WNV disease," the CDC said.
The $295 Mosquito Magnet Defender or $495 Mosquito Magnet Liberty by American Biophysics are more effective, although Consumer Reports tests showed them to have only moderate success against Culex mosquitoes.
The institute breeds aedes, anopheles and culex mosquitoes used in research toward development of repellents, drugs and vaccines to protect service members from such diseases as dengue fever, malaria and encephalitis.
Gainesville scientists are testing the effectiveness of the baculovirus on Culex mosquitoes carrying West Nile virus in the Northeast.
CDC officials believe this raises the possibility that the virus survived the winter and that the late-summer emerging Culex mosquitoes could still be infected.