Attack of the Urban Mosquitoes

Aggressive and Hard to Kill: Two Asian Cityslickers Swarm the East Coast
JULY 20, 2011

The latest scourge crossing the country has a taste for the big city.

The Asian tiger mosquito, named for its distinctive black-and-white striped body, is a relatively new species to the U.S. that is more vicious, harder to kill and, unlike most native mosquitoes, bites during the daytime. It also prefers large cities over rural or marshy areas—thus earning the nickname among entomologists as "the urban mosquito."

"Part of the reason it is called 'tiger' is also because it is very aggressive," says Dina Fonseca, an associate professor of entomology at Rutgers University. "You can try and swat it all you want, but once it's on you, it doesn't let go. Even if it goes away, it will be back for a bite." the rest image by Sean McCann

These urban mosquitoes are what entomologists call "container mosquitoes." Instead of marshes and natural bodies of water, both Asian tiger and rock pool mosquitoes can breed in small, artificial containers, such as tires, toys, cans and concrete structures. "A rule of thumb for container mosquitoes is: Water plus seven days equals mosquitoes," Dr. Fonseca says.