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Acromyrmex octospinosus is a leaf cutting and fungus growing ant in the tribe Attini. The highly polymorphic workers are reddish brown to nearly black, and measure up to 7.5 mm in length. They are mainly characterized by the absence of median spines, the flattened shape of the lower pronotal spines which have a blunt or rounded tip, and sparse pubescence (Gonalves, 1961). Like its relatives in the closely related Atta, A. octospinosus workers harvest foliage from live plants. The foliage is brought back to specialized underground chambers and used to cultivate a fungus the ants depend upon for nutrition. Acromyrmex octospinosus is considered a significant agricultural pest (Cherrett & Peregrine, 1976). The species ranges from Mexico to northern South America and into the Caribbean.


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Eli Sarnat (POE information)
Jack Longino (Neotropical information)

Source: AntWeb

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