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November 2018 CO2 Trap Results

These table and graphs show the average number of mosquitoes collected per CO2 trap per night during the month of November compared to the five-year average for the six most common mosquito species in San Mateo County. Counts for all species continue to decline as we progress into the cooler season. All species are near or slightly below average for this time of year.

Species

November 2018

5-year November average

Cx. pipiens

2.67

3.12

Cs. incidens

0.38

1.98

Ae. washinoi

0.00

0.00

Cx. tarsalis

0.04

0.06

Cx. erythrothorax

0.04

0.34

Ae. sierrensis

0.00

0.00

 

 

Commands