Acromyrmex coronatus is a New World ant of the subfamily Myrmicinae found in the wild naturally from Guatemala to Brazil and Ecuador. A. coronatus can be identified by the presence of median pronotal spines being usually present and distinct, occasionally reduced or absent, the head tapering behind eyes, and head width of less than or equal to 1.7 mm. Nuptial flights are common in Monteverde, and the distinctively patterned dealate queens are often seen on the roads. Dealate queens have been observed out cutting leaves, suggesting the queens need to forage themselves to establish a colony.