Nylanderia fulva, also known as the tawny crazy ant, hails from northern Argentina and southern Brazil.
Exterminator Mike Matthews got the call because the home's air-conditioning unit had short-circuited. Why an exterminator for a problem with an appliance? Because of the crazy ants.
Matthews has seen crazy ants disable scores of air-conditioning units near Austin, Texas, where the invasive creatures have been a real headache. The ants swarm inside the units, causing them to short-circuit and preventing them from turning on. Often the switches inside them need to be replaced, thanks to the ants, said Matthews, who works for the Austin-area pest control business The Bug Master.
For the rest of the story: http://www.livescience.com/37720-crazy-ants-invade-electronics.html