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Types of Mosquitoes Found in Santa Clara County

Published on: 10/30/2013 5:01 PM
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Santa Clara County is home to some 19 species of mosquitoes. The following table lists the six most common species, their common name, habitat, time of year most likely found and diseases they are capable of transmitting.
Other species of mosquitoes found in our County include:
Anopheles punctipennis, An. occidentalis and An. franciscanus.
• Culiseta incidens and Cs. particeps.
• Culex apicalis, Cx. boharti, Cx. stigmatosoma, and Cx. erythrothorax.
• Aedes dorsalis, Ae. melanimon, Ae. washinoi, and Ae. nigromaculis.

 

SPECIES COMMON NAME HABITAT

SEASON/
PEAK MONTH

DISEASES

Culex pipiens

 

Northern house mosquito

Containers, ponds, drains, under-ground, foul water

All year/
August

West Nile, St. Louis encephalitis

Culex tarsalis

 

Western encephalitis mosquito

Ponds and vegetated pools

Spring thru Fall/May and September

West Nile, St. Louis encephalitis

Aedes sierrensis

 

Western treehole mosquito

Treeholes, containers

Spring/April

Dog heartworm

Aedes squamiger

 

California salt

marsh mosquito

Stagnant brackish or salt water

Late winter, early Spring/
February

None

Anopheles freeborni

 

Western malaria mosquito

Pond margins, stream margins

Summer/
August

Malaria

Culiseta inornata

 

Winter mosquito

Stagnant brackish water, ponds

Fall through Spring/March

None