Colobopsis gasseri is a species of ant commonly found in Southeast Asia. These ants are known for their distinctive reddish-brown coloration and relatively small size, measuring around 4-5 millimeters in length. They are highly social insects, living in large colonies with a strict caste system. Colobopsis gasseri ants are particularly notable for their ability to defend their colonies by releasing a sticky substance from their mandibles, effectively immobilizing potential threats.