Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Harvester ant entrance.

Pogonomyrmex barbatus


Ant nest entrance on the side of a path, surrounded by small pebbles. A number of ants were moving in and out of the entrance.


Path through a riparian woods.


Harvester ants' nest entrances are often surrounded by a disk of bare ground - sometimes the disk is covered with gravel, sometimes not. If plants grow up inside of the disk of clear ground, the ants will chew at the plants until the plants die. Harvester ants are seed eating ants. Like many of the other Pogonomyrmex harvester ants, they have a powerful sting which they are not shy about using. Their sting is quite painful and best avoided. In the evening, a few workers will usually seal the nest entrance with gravel and twigs to keep nighttime intruders out of the nest. Often one or two of the workers will end up on the outside of the nest entrance after closing it.

Species ID Suggestions

Sign in to suggest organism ID

No Comments

Spotted by

Sierra Vista, Arizona, USA

Spotted on Nov 4, 2012
Submitted on Nov 19, 2012


Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team