Back in May 2003 I posted about Argentine ants (Linepithema humile) invading Rotorua, New Zealand. That was on the North Island of New Zealand...now comes news from Scoop that the ants are causing problems on the South Island, too. Officials in Christchurch are asking residents to contact insect pest professionals if they think they have an Argentine ant infestation. There's even a hotline set up by the Department of Conservation for people to report ant sightings.
Thanks to Val C. for sending in the link to this story.