What is the largest species of ant?

The largest species of ant is the Titanomyrma giganteum, which lived approximately 50 million years ago during the Eocene Epoch. These ants were over 6 centimeters (2.4 inches) long, significantly larger than the ants we see today. The largest living species of ant today is the “Bulldog ant” (Mymecia), native to Australia, with workers growing up to 1.5 inches (3.8 centimeters) in length. These ants are known for their aggressive behavior and potent venom.