Acromyrmex striatus is a species of the leaf-cutter ants found in the Neotropics. It is a member of the subfamily Myrmicinae, and within the tribe Attini. As an attine, Acromyrmex striatus forages for vegetation that will be applied to the fungal garden, typical in all leaf-cutting species. The fungus is fed the mycophagous larvae and queen, while workers are nourished primarily by the sap of cut plants, and very little by the mutualistic fungus making them respectively, phytophagous, and mycophagous. The presence of leaf-cutter ants is so common in the Neotropics, that they are considered to be the main herbivores of these areas.,