Aedes vexans

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Aedes vexans
Inland Floodwater Mosquito (48453978947).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Culicidae
Genus: Aedes
Species:
A. vexans
Binomial name
Aedes vexans
(Meigen), 1830

Aedes vexans, the inland floodwater mosquito or tomguito, is a cosmopolitan and common pest mosquito. This species has been collected in southern California. [1] [2] [3]

Contents

Description

The adult female has a bandless proboscis, short, brown scales on the scutum, and B-shaped (when viewed from the side) markings on each abdominal tergite. Only the female takes blood meals, preferring humans and cattle. Males feed on nectar, honeydew, and sap, on which females also feed, although rarely. They are usually found in association with grassy pools, partially shaded woodland pools, roadside ditches, and cultivated fields. [4]

Lifecycle

After taking a blood meal, the female lays her eggs in areas that readily flood, where they hatch when inundated. Larvae are found from April through September and adults from May through October in their central range. [4]

Medical importance

A. vexans is a known vector of Dirofilaria immitis (dog heartworm), myxomatosis (a deadly rabbit viral disease), and Tahyna virus, a seldom-diagnosed Bunyaviridae virus, which affects humans in Europe, causing a fever which disappears after 2 days, but afterward can cause encephalitis or meningitis. A. vexans is the most common mosquito in Europe, often comprising more than 80% the European mosquito community. Its abundance depends upon availability of floodwater pools. In summer, up to 8,000 mosquitoes can be collected per trap per night. [5] A. vexans exhibited significantly higher transmission rates of Zika virus than A. aegypti, and its wide geographic distribution, periodic extreme abundance, and aggressive human biting behavior increase its potential to serve as a Zika virus vector in northern latitudes outside the range of the primary vectors A. aegypti and A. albopictus . [6] In addition to several medically important viruses Aedes vexans mosquitoes have also been shown to harbour the insect-specific flavivirus Chaoyang virus [7] and insect-specific Aedes vexans Iflavirus. [8]

Related Research Articles

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<i>Aedes</i> Genus of mosquitoes

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<i>Aedes aegypti</i> Species of mosquito

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<i>Culiseta</i> Genus of mosquitos

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<i>Culex restuans</i> Species of fly

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<span class="mw-page-title-main">Mosquito-borne disease</span> Diseases caused by bacteria, viruses or parasites transmitted by mosquitoes

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<i>Culex tarsalis</i> Mosquito species

Culex tarsalis, also known as Western Encephalitis Mosquito, is a mosquito species that appears in southern California. The species has black and white banding on the legs.

<i>Culex quinquefasciatus</i> Species of fly

Culex quinquefasciatus, commonly known as the southern house mosquito, is a medium-sized mosquito found in tropical and subtropical regions of the world. It is a vector of Wuchereria bancrofti, avian malaria, and arboviruses including St. Louis encephalitis virus, Western equine encephalitis virus, Zika virus and West Nile virus. It is taxonomically regarded as a member of the Culex pipiens species complex. Its genome was sequenced in 2010, and was shown to have 18,883 protein-coding genes.

<span class="mw-page-title-main">Lethal ovitrap</span> Mosquito-killing trap

A lethal ovitrap is a device which attracts gravid female container-breeding mosquitoes and kills them. The traps halt the insect's life cycle by killing adult insects and stopping reproduction. The original use of ovitraps was to monitor the spread and density of Aedes and other container-breeding mosquito populations by collecting eggs which could be counted, or hatched to identify the types of insects. Since its conception, researchers found that adding lethal substances to the ovitraps could control the populations of these targeted species. These traps are called lethal ovitraps. They primarily target Aedes aegypti and Aedes albopictus mosquitoes, which are the main vectors of dengue fever, Zika virus, west Nile virus, yellow fever, and chikungunya.

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<i>Culiseta incidens</i> Species of mosquito

Culiseta incidens, the cool weather mosquito, is a species of mosquito in the family Culicidae. Specimens have been collected in Southern California.

<i>Culiseta inornata</i> Species of fly

Culiseta inornata, the winter marsh mosquito, or the unadorned American cool weather mosquito is a species of mosquito in the family Culicidae. This species is found in southern California.

<i>Anopheles franciscanus</i> Species of fly

Anopheles franciscanus is a species of mosquito in the family Culicidae. This species has been collected in southern California.

Culex stigmatosoma is a mosquito species that appears in Southern California, Oregon, and Texas. It is a confirmed vector of West Nile virus.

Culex thriambus is a mosquito species that appears in the southwestern United States, including Southern California, Texas, as well as in Mexico. It is a confirmed vector of West Nile virus. The majority of host species the mosquito takes blood from are in the order Passeriformes.

Culiseta particeps is a species of mosquito in the family Culicidae. It is found along the West coast of the United States including Southern California, Arizona as well as Mexico and Guatemala. Cs. particeps is not a known vector of human pathogens.

<i>Anopheles hermsi</i> Mosquito species

Anopheles hermsi is a species of mosquito in the family Culicidae. It is a known vector of Plasmodium vivax malaria. An. hermsi have been collected in Southern California.

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References

  1. Sandhu TS, Williams GW, Haynes BW, Dhillon MS. Population dynamics of blood-fed female mosquitoes and comparative efficacy of resting boxes in collecting them from the northwestern part of Riverside County, California. J Global Infect Dis [serial online] 2013 [cited 2013 Oct 22];5:15-8.
  2. E. T. SCHREIBER; J. D. CHANEY; M. S. MULLA; W. E. WALTON (1989). "Bionomics of Culiseta particeps in southern California" (PDF). Journal of the American Mosquito Control Association. 5 (3): 434–435. PMID   2573691 . Retrieved 9 April 2022.
  3. Sandhu TS, Williams GA, Haynes BW, Dhillon MS. Evaluation of arboviral activity at Northwest Mosquito and Vector Control District, Riverside County, California during 2008. Proc and Papers of the Mosq and Vector Control Assoc of Calif, vol 77, 2009. pp. 108-15.
  4. 1 2 "Species Aedes vexans - Inland Floodwater Mosquito". BugGuide.
  5. "Mosquito of the Month: Aedes vexans - the Inland Floodwater Mosquito". Vector Disease Control International. 30 June 2016. Retrieved 1 February 2017.
  6. Kyle L. O’Donnell, Mckenzie A. Bixby, Kelsey J. Morin, David S. Bradley, and Jefferson A. Vaughan. 2017. Potential of a Northern Population of Aedes vexans (Diptera: Culicidae) to Transmit Zika Virus. Journal of Medical Entomology, 2017, 1–6; doi: 10.1093/jme/tjx087.
  7. Lee JS, Grubaugh ND, Kondig JP, Turell MJ, Kim HC, Klein TA; et al. (2013). "Isolation and genomic characterization of Chaoyang virus strain ROK144 from Aedes vexans nipponii from the Republic of Korea". Virology. 435 (2): 220–4. doi: 10.1016/j.virol.2012.10.020 . PMID   23127596.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  8. Parry R, Naccache F, Ndiaye EH, Fall G, Castelli I, Lühken R; et al. (2020). "Identification and RNAi Profile of a Novel Iflavirus Infecting Senegalese Aedes vexans arabiensis Mosquitoes". Viruses. 12 (4): 440. doi: 10.3390/v12040440 . PMC   7232509 . PMID   32295109.{{cite journal}}: CS1 maint: multiple names: authors list (link)