Pheidole navigans

Pheidole navigans, also called the navigating big-headed ant or the wandering big-headed ant, is a species of big-headed ant in the Pheidole flavens species group. Native to the Neotropics, it is a widespread invasive species, however its ecological impacts are not considered significant as of 2022. Prior to 2015, it was classified as a synonym of Pheidole flavens, and it was misidentified in its invasive range as Pheidole moerens. As with the vast majority of species within the genus Pheidole, they possess a dimorphic caste system with a major and minor worker. They are small reddish-brown ants not larger than 2.5 millimetres (0.098 in) with a generalist ecology and flexible nest preferences.