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December 2018 CO2 Trapping Results

The following table and graph show the average number of mosquitoes collected per CO2 trap per night during the month of December compared to the five-year average for the six most common mosquito species in San Mateo County. Counts for all species are averaging below five per trap night, which is consistent with the five-year average. The numbers are expected to remain low until spring. 

Species

December 2018

5-year December average

Cx. pipiens

0.35

1.79

Cs. incidens

0.10

0.06

Ae. washinoi

0

0

Cx. tarsalis

0

0.05

Cx. erythrothorax

0

0

Ae. sierrensis

0

0

 

Commands