Messor pergandei
Messor pergandei is a common seed harvesting ant of the Sonoran Desert. They are a glossy black color. They forage in long, dense streams of ants. There are usually a couple of different size classes of ants in the foraging columns. Messor pergandei, unlike Pogonomyrmex seed harvesting ants, do not sting. Their nests are often surrounded by midden pile 'pillows' made up of refuse from the nest.


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Messor pergandei worker at their nest entrance
Messor pergandei worker at their nest entrance
Messor pergandei worker
Messor pergandei worker
Messor pergandei worker held in my fingers for scale
Messor pergandei worker held in my fingers for scale
Messor pergandei worker
Messor pergandei worker
Messor pergandei worker
Messor pergandei worker
Messor pergandei worker. You can see the long, curved hairs (called a psammaphore) beneath her head.
Messor pergandei worker. You can see the long, curved hairs (called a psammaphore) beneath her head.