The largest species of ant is the Bulldog Ant, which belongs to the genus Myrmecia. These ants are native to Australia, and they are known for their size and aggressive behavior.
Bulldog ants can vary in size, but some of the larger species can reach lengths of up to 1.6 inches (4 centimeters). They are easily distinguishable by their large mandibles and powerful stings, making them one of the largest and most formidable ants in the world.
These ants are primarily found in various regions of Australia, including forests, woodlands, and heathlands. They are often associated with nest sites in the ground, and their colonies can be composed of a few hundred to several thousand individuals. While Bulldog ants are known for their size and aggressiveness, they typically play an important ecological role in the Australian ecosystem by preying on insects and helping to control local insect populations.