Common mosquitoes that can spread disease in Massachusetts

Information about common kinds of mosquitoes that are most likely to spread disease in Massachusetts

Most mosquito bites will only result in itching or skin irritation. However, some kinds of mosquitoes found in Massachusetts carry viruses (germs) that can cause illness.

Mosquitoes in Massachusetts

Mosquito Species Name When are they most active? Where do they live and what kind of water do they like? What types of animals do they bite? What time of year are they most common?
Aedes vexans Dusk/dawn, night River floodplains and salt-marshes temporary flooded areas Mammals/humans Summer and early fall
Coquillettidia perturbans Dusk/dawn, night Woodlands cat-tail marshes Birds Mammals/humans Summer
Culex pipiens Dusk/dawn, night Urban areasartificial containers Birds,
Occasionally mammals/humans
Summer and early fall
Culex restuans Dusk/dawn, night Urban areasnatural and artificial containers Birds,
Occasionally mammals/humans
Spring, summer and fall
Culex salinarius Dusk/dawn, night Salt-marshes brackish and  freshwater wetlands


Culiseta melanura Dusk/dawn, night Woodlandswhite cedar and red maple swamps Birds, occasionally Mammals/humans Spring and summer
Ochlerotatus canadensis Dusk/dawn, day Woodlandswoodland pools Birds Mammals/humans Late spring through summer
Ochlerotatus japonicus Day Urban areasnatural and artificial containers Mammals/humans Summer through fall

More information

For information on diseases spread by mosquitoes and how to prevent them: Contact the MDPH, Division of Epidemiology and Immunization at (617) 983-6800 or visit the MDPH Mosquito website.

This web page was developed in conjunction with the State Reclamation and Mosquito Control Board and the Massachusetts Mosquito Control Projects.

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