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 - Alex Wild Photography - Insect Photography

Neivamyrmex

is the most diverse and widely-distributed of the new world army ant genera, and the only army ant found in the temperate regions of North America. Although these insects are not uncommon, they are not often encountered because of their partly subterranean habits. Most species are specialized predators of other ant species.

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An underground trail of a South American army ant (Neivamyrmex bohlsi). The colony has workers of many different sizes, allowing the ants to attack and transport a larger range of prey.

Lagunas Yala, Jujuy, Argentina

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

Neivamyrmex californicus army ants are specialist predators of the brood of other ant species. Here worker army ants attack a defending Tetramorium worker as others plunder the Tetramorium brood.

California, USA

Neivamyrmex harrisi. Close-up of a male army ant.

Pima County, Arizona, USA

Neivamyrmex harrisi. Male army ants are sometimes called "sausage flies" for their distinctive appearance.

Pima County, Arizona, USA

Neivamyrmex harrisi is one of the most commonly seen army ant males that fly to lights at night in Arizona. Although the workers of this species are known, they are not often seen as they are largely subterranean. Many army ant species are only known from either males or from workers, leading to a confusing double taxonomy where the same biological species has a male and a female name.

Pima County, Arizona, USA

Neivamyrmex harrisi. Male army ants are highly specialized creatures. Their large eyes help them navigate as they try to locate colonies where they may find potential mates, and their elongate mandibles are used to grasp queens during mating.

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

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Neivamyrmex

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