the name of the ant is: Formica polyctena
and, it is not a austriant - its an europeant...
My first year managing a marina in the California Delta we were plagued by swarming "lady bugs" that bit. People using the restrooms complained that while they were showering the "bugs" would nest in their clothes and cover their towels. There were swarms of them, nasty biting swarms that headed out as soon as it got really cold.
We bought Lady Bugs to kill aphids one year, they all flew away. Today we bought to Preying Mantid egg cases and I'm hoping that they will make their home here! Being a cancer survivor I refuse to use chemicals in the yard and garden as much as possible.