West Nile Virus
Prevalence: Moderate
Risk 3/5
Inland Floodwater Mosquito
Aedes vexans · “The Floodwater Biter”
Medium-sized brown mosquito with white markings. Breeds in temporary, freshwater pools. Emerges en masse after flooding.
Disease risks
Eastern Equine Encephalitis
Prevalence: Low
How to identify
- Size
- 6-8mm (medium)
- Color
- Brown with white markings
- Distinctive features
- White-banded legs, white abdominal bands
- Resting posture
- Head-down posture
- Prefers
- Humans and large animals
- Pain level
- Moderate to high
- Persistence
- Persistent; forms swarms
- Transmission
- Competent vector for West Nile Virus and encephalitis
What actually works
Habitat Elimination (Source Control)
Removal and treatment of breeding sites. Professional inspection identifies and eliminates standing water where mosquitoes lay eggs.
Pyrethroid Spray Treatment
Professional-grade synthetic pyrethroid insecticide applied by licensed technicians. Fast-acting, EPA-approved, effective against adult mosquitoes.
ULV Mosquito Fogging
Ultra-Low Volume fogging using specialized equipment to create fine mist of insecticide. Covers large areas quickly; used for emergency mosquito swarms.
Cities where Inland Floodwater Mosquito is active
New York, New YorkLong Island, New YorkChicago, IllinoisHouston, TexasPhiladelphia, PennsylvaniaSan Antonio, TexasDallas, TexasAustin, TexasWestchester, New YorkFort Worth, TexasColumbus, OhioIndianapolis, IndianaHempstead, New YorkNashville, TennesseeEl Paso, TexasMemphis, TennesseeBaltimore, MarylandKansas City, Missouri
Fun fact
Aedes vexans can cause massive swarm problems after heavy rains when temporary breeding pools form. A single ditch can produce hundreds of thousands of adults.