Inch Ant Myrmecia pyriformis

Despite being one of Australia's most abundant ants in major cities, this species earned its 'inch ant' nickname for its genuinely impressive size. These bull ants pack a venomous sting and notorious aggressive temperament, making them something urban Australians quickly learn to respect and avoid.

Found most abundantly in the eastern states — particularly in places like Sydney and Melbourne — they're large enough to be genuinely noticeable when they invade your space. Their abundance combined with their attitude makes them one of Australia's most talked-about backyard residents.