Atta laevigata

Species of leafcutter ant

Atta laevigata, commonly known as the leafcutter ant, is a species of ant in the genus Atta. These ants are notable for their advanced social structure and their ability to cultivate fungus as a primary food source. Atta laevigata is one of the largest species of leafcutter ants and is found primarily in South America.

Description

Atta laevigata ants are characterized by their large size and powerful mandibles, which they use to cut leaves. The workers vary in size, with the largest individuals, known as "soldiers," reaching up to 20 mm in length. The ants have a reddish-brown coloration and a smooth, shiny exoskeleton.

Habitat and Distribution

Hormigas Culonas from Santander

Atta laevigata is predominantly found in tropical and subtropical regions of South America, including countries such as Brazil, Colombia, and Venezuela. They inhabit a variety of environments, from dense rainforests to open savannas. These ants build extensive underground nests that can house millions of individuals.

Behavior

Atta laevigata exhibits complex social behavior, with a division of labor among different castes. The colony is organized into workers, soldiers, and reproductive individuals. Workers are responsible for foraging and caring for the fungus gardens, while soldiers defend the colony from predators.

Foraging and Fungus Cultivation

The ants forage for leaves, which they cut and transport back to the nest. The leaves are not consumed directly; instead, they are used to cultivate a specific type of fungus, which serves as the primary food source for the colony. This mutualistic relationship between the ants and the fungus is a hallmark of leafcutter ant species.

Cultural Significance

In some regions, Atta laevigata is known as "Hormiga Culona" and is considered a delicacy. The ants are harvested and roasted, often consumed as a snack or used in traditional dishes. This practice is particularly common in the Santander Department of Colombia.

Related pages

• Leafcutter ant
• Ant
• Fungus farming