Asian tiger mosquito
Location of Origin: Asia
Environmental Impact: Aggressive biting of humans, vector of several viruses (i.e. West Nile Virus, Yellow Fever, St. Louis encephalitis, dengue fever, etc.)
Method of Introduction: Accidentally introduced into United States while importing Japanese tires.
Distribution: Concentrations in Southwest, Northeast United States.
Ecology: Eggs do not necessarily need to be laid in stagnant water, as larvae can develop in both still water and running water. Females normally lay eggs on sides of containers filled with water (i.e. tires, flowerpots, natural holes) and the eggs require rainfall to rise the water level and trigger the larvae to hatch. Larvae are called wigglers, actively feeding in the water, siphoning organic matter floating around. Larval stage lasts 5-10 days, and pupal stage lasts 2 days.
Life Cycle: Females require blood for egg development, and obtain it by sucking it out of its host(s) with an elongated proboscis. The bite is quick, so the reaction of a human attempting to swat it isn't fast enough to catch the fleeing mosquito. Males feed on nectar, sweet plant juices.