 | | Atta mexicana nest at the base of a saguaro. Their nests are very different from those of Acromyrmex versicolor, a more common Arizona leafcutter ant. |
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 | | Atta mexicana minor worker. |
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 | | Atta mexicana minor worker. |
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 | | Atta mexicana worker carrying dirt out of nest. |
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 | | Atta mexicana, closeup of head. |
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 | | Atta mexicana worker, view of back of head showing spines. |
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 | | Atta mexicana worker carrying minor worker from nest. |
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 | | Another view of an Atta mexicana nest. The nest is at the base of the saquaro cactus in the photo, and the excavated dirt is plainly visible. |
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