Identification
Culex pipiens mosquitoes, commonly known as the common house mosquito, measure about 1/4 inch in length. They have a light brown to grayish body with darker bands on their abdomen. Their wings are narrow and covered with fine scales. They have long, slender legs and a distinct proboscis for feeding.
Lifecycle & Reproduction
Culex pipiens undergo complete metamorphosis with four stages: egg, larva, pupa, and adult. Females lay egg rafts containing up to 400 eggs on stagnant water. Eggs hatch within 24 to 48 hours, and larvae develop into pupae within a week. Adults emerge in about 10 to 14 days, with females requiring a blood meal for reproduction.
Habits, Diet & Behavior
Culex pipiens mosquitoes are crepuscular and nocturnal feeders, primarily active at dusk and dawn. Females feed on human and animal blood, while males consume nectar. They are known vectors of West Nile virus, St. Louis encephalitis, and other mosquito-borne diseases.
Where You’ll Find Them / Typical Locations
Culex pipiens mosquitoes thrive in urban and suburban environments, commonly found:
- Near standing water, such as puddles, ponds, and clogged drains
- Inside storm drains and septic systems
- Around birdbaths, pet bowls, and rainwater collection areas
- In dense vegetation, shrubs, and shaded areas
- Indoors, particularly in basements and garages
Threats & Danger
Culex pipiens mosquitoes are significant disease vectors, transmitting West Nile virus, encephalitis, and other pathogens. Their bites cause itching and irritation, and they can breed rapidly in stagnant water, leading to widespread infestations.
Prevention
- Eliminate standing water sources by regularly draining and cleaning containers
- Use mosquito repellents containing DEET, picaridin, or IR3535
- Install window and door screens to prevent indoor entry
- Maintain gutters, drains, and other water collection areas to prevent mosquito breeding
- Introduce natural predators like mosquito-eating fish in outdoor water sources
Signs of Infestation
- Increased mosquito activity during dusk and night hours
- Presence of mosquito larvae or egg rafts in standing water
- Bites causing red, itchy welts, particularly around exposed skin
- Frequent buzzing sounds near water or in shaded outdoor areas
- Reports of mosquito-borne illnesses in the local area
How to Get Rid of It
- Remove or regularly clean all water-holding containers around properties
- Use larvicides or bacterial treatments in standing water sources
- Apply insecticides or natural repellents in high-activity areas
- Install outdoor mosquito traps or use fans to deter mosquitoes
- Seek professional pest control assistance for large-scale infestations