Acromyrmex versicolor, the desert leafcutter.

Laboratory colony at Arizona State University
Acromyrmex versicolor desert leafcutter ant carrying a fragment of a mesquite seed pod.

Green Valley, Arizona, USA
The nest entrances of the desert leafcutter ant Acromyrmex versicolor are often nearly completely round, appearing like a miniature volcano.

Green Valley, Arizona, USA
Acromyrmex versicolor, the desert leafcutter.

Laboratory colony at Arizona State University
Cyphomyrmex wheeleri is the most temperate of the Cyphomyrmex species, occurring as far north as San Francisco, California.  Here worker ants tend to their fungus garden.

Austin, Texas, USA
Male leaf-cutting ants (Acromyrmex versicolor) lek above the desert floor, awaiting virgin queens who fly into the swarm to mate.  This species flies during the Arizona summer monsoon season, early in the morning after a soaking rain.

Tucson, Arizona, USA
A desert leafcutter, Acromyrmex versicolor, carrying a leaf back to her nest.

Tucson, Arizona, USA
Sericomyrmex amabilis. An ant worker tends to brood in the fungus garden.  Note how the eggs and larvae are embedded within the fluffy white hyphae of the fungus.

Parque Soberania, Panama; Laboratory colony at the University of Texas
Sericomyrmex amabilis. A fungus-growing ant worker carefully tends to a larva.  Note the other ant eggs and larvae that are embedded within the fluffy white hyphae of the fungus garden.

Parque Soberania, Panama; Laboratory colony at the University of Texas
Acromyrmex versicolor, the desert leafcutter.

Laboratory colony at Arizona State University
Acromyrmex versicolor, the desert leafcutter.

Laboratory colony at Arizona State University
Acromyrmex versicolor, the desert leafcutter.

Laboratory colony at Arizona State University
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all images and text © Alex Wild 2001-2013