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Invasive Mosquitos

We need your help!

Please contact us, if you see these mosquitoes in Santa Barbara County.

Close-up photos of Asian Tiger Mosquitoes
Close-up photos of Yellow fever mosquitoes









Invasive Aedes Mosquitoes in California                                                         

One or both of these invasive mosquito species have been found in Los Angeles, Fresno, Madera, Kern, Tulare, San Diego, Imperial, Orange, Alameda, Riverside, and San Mateo Counties:

  • Aedes albopictus--Asian tiger mosquito
  • Aedes aegypti--Yellow fever mosquito

These mosquito species:

  • are small (1/4 inch long).
  • are dark-colored with bright white markings.
  • bite during daytime.
  • may bite and reproduce indoors.
  • prefer to feed on mammals, especially people.
  • will lay eggs in buckets, flower pot saucers, old tires, and various other types of containers that are partially filled with water, along with many other backyard, or even indoor, water sources.
  • lay eggs that can remain viable for months on dry surfaces of containers.
  • can transmit chikungunya virus, dengue fever, West Nile virus, yellow fever, and Zika virus, as well as dog heartworm.
  • are not native to California - help us prevent their spread.

For more information, visit the Cailfornia Dept of Public Health's webpage on invasive Aedes mosquitoes.

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