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| Entomology |
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The following 43 mosquito species list contains the species found in West Nile positive* mosquito pools in the United States since 1999.
* from which West Nile virus isolated, West Nile RNA detected, or West Nile antigen detected using a variety of diagnostic tests. Data was obtained by CDC field investigations or were reported by state surveillance programs to ArboNet as of 08/23/03.
Mosquito Species
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| Aedes species |
Aedes albopictus
Aedes cinereus
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Aedes aegypti
Aedes vexans
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| Anopheles species |
Anopheles barberi
Anopheles punctipennis
Anopheles walkeri
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Anopheles atropos
Anopheles quadrimaculatus
Anopheles crucians/bradleyi
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| Coquillettidia species |
Coquillettidia perturbans
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| Culiseta species |
Culiseta inornata
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Culiseta melanura
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| Culex species |
Culex erraticus
Culex quinquefasciatus
Culex tarsalis
Culex pipiens
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Culex nigripalpus
Culex restuans
Culex territans
Culex salinarius
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| Deinocerites species |
Deinocerites cancer
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| Ochlerotatus species |
Ochlerotatus atropalpus
Ochlerotatus cantator
Ochlerotatus infirmatus
Ochlerotatus sollicitans
Ochlerotatus taeniorhynchus
Ochlerotatus canadensis
Ochlerotatus provocans
Ochlerotatus trivittatus
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Ochlerotatus atlanticus/tormentor
Ochlerotatus dorsalis
Ochlerotatus japonicus
Ochlerotatus sticticus
Ochlerotatus triseriatus
Ochlerotatus fitchii
Ochlerotatus stimulans
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| Orthopodomyia species |
Orthopodomyia signifera
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| Psorophora species |
Psorophora ciliata
Psorophora columbiae
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Psorophora ferox
Psorophora howardii
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| Uranotaenia species |
Uranotaenia sapphirina
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| THE WEST NILE BACKGROUND |
The West Nile virus (WNV) is transmitted by a mosquito vector and can result
in encephalitis in infected humans and equine. WNV can also result in wild and
domestic bird mortality. WNV was first discovered in a woman from the West Nile
District of Uganda in 1937. WNV spread across areas of Africa, Eastern Europe,
West Asia, and the Middle East, eventually appearing in the Eastern United
States in 1999. |
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| Did You Know? |
After a blood meal is digested and the eggs are laid, the female mosquito
again seeks a blood meal to produce a second batch of eggs. Depending on her
stamina and the weather, she may repeat this process many times without mating
again. |
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