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Army ant males are most commonly seen at night. They sometimes end up at lights as they disperse on wing from their natal colonies. This army ant, Neivamyrmex swainsonii, is a broadly-distributed species found from the southern United States to northern Argentina. Peña Blanca Lake, Arizona, USA
Army ant males are most commonly seen at night. They sometimes end up at lights as they disperse on wing from their natal colonies. This army ant, Neivamyrmex swainsonii, is a broadly-distributed species found from the southern United States to northern Argentina. Peña Blanca Lake, Arizona, USA
A male army ant during a nighttime nest emigration of Neivamyrmex nigrescens. Portal, Arizona, USA
Neivamyrmex melanocephalus army ants initiating a live-ant bridge with their own bodies. Here two ants lean against each other while a third starts to climb. Sycamore Canyon, Arizona, USA
Neivamyrmex harrisi. Male army ants are sometimes called "sausage flies" for their distinctive appearance. Pima County, Arizona, USA
Neivamyrmex army ants are specialist predators of the brood of other ant species. Here, N. californicus raid the brood nest of the pavement ant Tetramorium caespitum. California, USA
Army ants on the march. This species, Neivamyrmex californicus, is endemic to California and Baja California. Jasper Ridge, California, USA
Neivamyrmex army ants are specialist predators of the brood of other ant species. Here, N. californicus raid the brood nest of the pavement ant Tetramorium caespitum. California, USA
Army ant males are most commonly seen at night. They sometimes end up at lights as they disperse on wing from their natal colonies. This army ant, Neivamyrmex swainsonii, is a broadly-distributed species found from the southern United States to northern Argentina. Peña Blanca Lake, Arizona, USA
Army ants on the march. This species, Neivamyrmex californicus, is endemic to California and Baja California.

Jasper Ridge, California, USA
Army ants on the march. This species, Neivamyrmex californicus, is endemic to California and Baja California. Jasper Ridge, California, USA
Army ants on the march. This species, Neivamyrmex californicus, is endemic to California and Baja California.

Jasper Ridge, California, USA
See photo in original gallery.
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all images and text © Alex Wild 2001-2013