Sun scorpions (Order Solifugae) may look scary, but in fact they are harmless animals. They are found in arid regions worldwide, where they are primarily active at night.

California, USA
Pogonomyrmex rugosus, harvester ant worker cutting grass seeds off the stalk.

Tucson, Arizona, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor. 

Hallelujah Junction, California, USA
Myrmecocystus tenuinodis, a small honeypot species that lives in sand dunes and is active in the mornings.

Mojave National Preserve, California, USA
Myrmecocystus honeypot ant species come in three basic color patterns, depending on the time of day that they forage.  The orange/yellow species such as this M. navajo are nocturnal.  These ants were photographed leaving their nest entrance to forage shortly after dusk.

Willcox, Arizona, USA
Messor pergandei carrying seeds back to the nest.

Mojave National Preserve, California, USA
Messor pergandei is among the most commonly seen seed harvesting ants in southern California.  Colonies of this species contain worker ants of different sizes, while most other seed harvesters in the region have monomorphic workers.  Here, a major worker carries a seed back to the nest.

Anza Borrego Desert, California, USA
Pogonomyrmex rugosus, harvester ant worker cutting grass seeds off the stalk.

Tucson, Arizona, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor. 

Hallelujah Junction, California, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor.

Hallelujah Junction, California, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor. 

Hallelujah Junction, California, USA
Western harvester ants (Pogonomyrmex occidentalis) make distinctive mound nests on the desert floor.

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