
Yellow Fever Mosquito
Aedes aegypti
The Yellow Fever Mosquito is the primary vector of yellow fever, dengue, chikungunya, and Zika viruses worldwide. It has a strong preference for human blood and often lives inside or near homes. It breeds in clean, standing water in domestic containers.
Identification
Size
4-7 mm
Color
Dark brown to black with white markings on legs and a lyre-shaped pattern on the thorax
Key Trait
White lyre-shaped marking on the thorax; prefers to bite humans over other animals; breeds indoors.
Behavior & Habitat
Prefers to bite humans, often feeding indoors. Bites during the day with peaks in early morning and late afternoon. Can complete its entire life cycle inside buildings in warm climates.
Habitat: Urban and suburban environments, closely associated with human habitation. Breeds in clean standing water in flower vases, pet dishes, gutters, and water storage containers. Common in the Gulf Coast states.
Diet: Female feeds preferentially on human blood; male feeds on nectar.
Signs of Infestation
- Daytime mosquito bites indoors
- Mosquitoes with lyre-shaped markings resting on indoor walls
- Larvae in household water containers
Risks & Damage
Primary global vector of dengue, Zika, chikungunya, and yellow fever viruses.
Prevention Tips
- 1.Eliminate all indoor standing water sources
- 2.Screen windows and doors
- 3.Change water in flower vases and pet dishes every 2 days
- 4.Use air conditioning when possible - these mosquitoes avoid cool environments
Why DIY Treatment Often Falls Short
Their close association with human habitation and indoor breeding make them exceptionally difficult to control with outdoor-only treatments. Comprehensive indoor and outdoor source reduction and treatment are needed.
Professional Treatment
Professionals implement integrated vector management including source reduction, targeted larviciding, indoor and outdoor residual treatments, and community education. This species requires the most thorough approach of any mosquito pest.
Frequently Asked Questions
Can yellow fever mosquitoes live inside my house?
Is yellow fever still a risk in the US?
How is this mosquito different from the Asian tiger mosquito?
Need Help With Yellow fever mosquito?
If you're seeing signs of yellow fever 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
- Aedes aegypti
- Size
- 4-7 mm
- Color
- Dark brown to black with white markings on legs and a lyre-shaped pattern on the thorax
- Key Trait
- White lyre-shaped marking on the thorax; prefers to bite humans over other animals; breeds indoors.
- Regions
- Southeast, South Central, Southwest
- Threat Level
- Very High
- Risk Types
- health
- Seasonal Activity
- MarAprMayJunJulAugSepOctNovDecJanFebnonelowmoderatehighpeak

