Vector Type
Mosquito
Vector Species Name
Culex pipiens
Vector Common Name
Common House Mosquito or Northern House Mosquito

Vector Information

Culex pipiens are found throughout the northern two thirds of the United States and are the most common mosquito in urban and suburban areas. Living in temperate climates, they reproduce in both flood prone and standing water. Examples of laying areas include natural marshes, cesspools, ditches and catch basins, used tires, clogged gutters, and poorly maintained artificial water features. The breeding cycle (egg, larvae, pupae, adult) of Cx. pipiens takes approximately two weeks, but can be less than a week under optimal conditions. Fertilized females overwinter in covered areas such as basements, sheds, caves, and culverts. Body length varies from three to seven millimeters and they have a pale, banded abdomen and overall inconspicuous appearance. They are virtually indistinguishable from Cx quinquefasciatus and have overlapping ranges. Primarily zoophilic, Cx. pipiens feeds most heavily during the first several hours after sunset and will enter homes in search of blood meals. They are also vectors of western equine encephalitis virus and St. Louis encephalitis virus.

Found In
AL
AK
AR
CA
CO
CT
DE
GA
HI
ID
IL
IN
IA
KS
KY
ME
MD
MA
MI
MN
MS
MO
MT
NE
NV
NH
NJ
NY
NC
ND
OH
OK
OR
PA
RI
SC
SD
TN
UT
VT
VA
WA
WV
WI
WY
DC

*Disease transmission varies locally. This map depicts where vectors can be found geographically and provides information about diseases these vectors might carry. Vectors might be present in a state or locality, however, and not be carriers of any particular disease. In addition, identified vectors may have a presence in a state, but may not be found throughout that state.