High Quality Content by WIKIPEDIA articles! Formica pratensis is a species of European red wood ant in the family Formicidae. It is found in Austria, Belgium, Bulgaria, Czech Republic, Estonia, Finland, France, Georgia, Germany, Hungary, Italy, Latvia, Latviania, Luxembourg, Moldova, Netherlands, Norway, Poland, Romania, Russia, Serbia and Montenegro, Slovakia, Spain, Sweden, Switzerland, Turkey, and the Ukraine. In forests weakened by pollution and acid rain in central Europe, red wood ant populations are often endangered for little known reasons which in turn causes further imbalances in predator-prey dynamics and the ecosystem.