Common House Mosquito
Culex pipiens
Also known as: Northern House Mosquito
The Common House Mosquito is the most abundant mosquito in urban and suburban areas of the northern United States. It is the primary vector of West Nile virus in the region. It breeds in polluted standing water such as storm drains, catch basins, and neglected swimming pools.
Identification
Size
3-7 mm
Color
Brown with lighter banding on the abdomen
Key Trait
Plain brown coloring; active at dusk and dawn; primary vector of West Nile virus in northern states.
Behavior & Habitat
Crepuscular and nocturnal feeder, most active at dusk and dawn. Enters homes through unscreened windows. Overwinters as mated females in sheltered locations like basements and storm drains.
Habitat: Storm drains, catch basins, retention ponds, clogged gutters, abandoned pools, and any source of organically rich standing water.
Diet: Females feed on bird and human blood; males feed on nectar.
Signs of Infestation
- Mosquito bites in the evening and early morning
- Mosquitoes resting on interior walls and ceilings at night
- Larvae in standing water in gutters and unmaintained pools
Risks & Damage
Primary vector of West Nile virus in northern states; also transmits St. Louis encephalitis.
Prevention Tips
- 1.Clean gutters to eliminate standing water
- 2.Report stagnant water in storm drains to your municipality
- 3.Maintain swimming pools with proper filtration and chlorination
- 4.Install or repair window and door screens
Why DIY Treatment Often Falls Short
Culex mosquitoes breed in municipal infrastructure (storm drains, catch basins) that homeowners cannot access. Backyard treatments alone cannot eliminate the breeding sources.
Professional Treatment
Professionals treat accessible breeding sites with larvicide, apply barrier sprays to vegetation where adults rest, and identify property-specific breeding sources. Coordination with municipal mosquito control programs is often recommended.
Related Pests
Frequently Asked Questions
Do house mosquitoes carry West Nile virus?
Why do I have mosquitoes inside at night?
Can they breed in my gutter?
Need Help With Common house mosquito?
If you're seeing signs of common house mosquito in or around your home, professional treatment is the fastest way to stop the problem. Lotus Pest Control offers free inspections to identify the issue and recommend the right solution.
At a Glance
- Category
- Mosquitoes
- Scientific Name
- Culex pipiens
- Size
- 3-7 mm
- Color
- Brown with lighter banding on the abdomen
- Key Trait
- Plain brown coloring; active at dusk and dawn; primary vector of West Nile virus in northern states.
- Regions
- Northeast, Midwest, Mid Atlantic, Pacific Northwest
- Threat Level
- High
- Risk Types
- health
- Seasonal Activity
- MarAprMayJunJulAugSepOctNovDecJanFebnonelowmoderatehighpeak