Vector Type
Mosquito
Vector Species Name
Coquillettidia perturbans
Vector Common Name
Cattail Mosquito

Vector Information

Coquillettidia perturbans are found throughout the United States, but occur more frequently in humid southern portions of the country. A typical Cq. perturbans breeding cycle (from egg, to larvae, to adult) takes around two weeks in typical temperatures, but may take several months in cool weather. They are a vector of West Nile virus (WNV) and eastern equine encephalitis virus (EEE). They are frequent in both forested and open areas. Habitat is associated with the presence of emergent aquatic vegetation, especially cattails. Larvae and pupae attach to stems of aquatic vegetation. Larvae overwinter attached to the roots of emergent aquatic vegetation. Adults have a dark proboscis with a band of light scales around the center, golden brown scutum, dark scaled abdomen, and pale scaled wings. They are often described as "shaggy" or salt and pepper because of their large light and dark scales. Cq. perturbans is considered a "bridge vector" of EEE and will transmit the virus between birds and humans. They feed most heavily near dusk, but will feed during the day if their habitat is disturbed. 

Found In
AL
AK
AR
CA
CO
CT
DE
FL
GA
HI
ID
IL
IN
IA
KS
KY
LA
ME
MD
MA
MI
MN
MS
MO
MT
NE
NH
NJ
NM
NY
NC
ND
OH
OK
OR
PA
RI
SC
SD
TN
TX
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.