Known as one of the most docile and 'inoffensive' of Pogos, these ants are a pleasure to observe, and photograph.
Typical length of worker ranges from 5.5mm to 6.5mm. The pale red, or orange-red worker shown here is from the eastern part of the species' range - individuals from farther west are often darker red in color.
P. desertorum makes small crater nests in sandy areas, and colony size is usually less than 500 ants. The workers generally forage individually.
Pogonomyrmex desertorum can be found in southern Arizona, southern New Mexico, and western Texas in the US, and the states of Chihuahua, Coahuila, Durango, San Luis Potosi, Sonora, and northern Tamaulipas in Mexico.
[IMAGE: Pogonomyrmex desertorum worker in Big Bend Nat'l Park, Texas USA] [scroll down for additional notes/references]
·Cole, A.C. 1968. Pogonomyrmex Harvester Ants: A Study of the Genus in North America. Knoxville, University of Tennessee Press
·Johnson, R.A. 2000. Seed Harvesting Ants (Hymenoptera: Formicidae) of North America: An Overview of Ecology and Biogeography. Sociobiology Vol.36, No. 1, 2000
·Taber, S.W. 1998. The World of the Harvester Ants. College Station, TX, Texas A&M University Press