Mosquitoes

All these damned mosquitoes buzzing around my apartment!! I learned in my architecture class last week that Berlin was built on a swamp/swampy grounds and that would certainly explain all these mosquitoes! I've been keeping my window open (but covered with the curtains) because the air gets so stale inside but then I get attacked by bugs. I'm almost ready for a quick hard freeze just to kill them all off! Looks like Wednesday's forecast low is 38º F ... will that be cold enough??