From the NY Post:
Pentatomoidae -- insects called stinkbugs because they emit an odor like rotten cheese -- have landed in Brooklyn, and they're spreading.
The fingernail-sized flying beetles are native to China, Korea and Japan, but made landfall in the US in 1998 in Allentown, Pa., according to Rutgers University entomologist George Hamilton.
"They're good hitchhikers," said Hamilton of the insects, which can lay up to 30 eggs at a time. "They get into clothes and suitcases and spread."
Robert Macri, a pest-control specialist, advises: "If you smash them, the odor comes out. The best is to pick them up and flush them. The problem is they're hard to catch because they fly."