Bothroponera pumicosa (Roger, 1860):
the Rugged ringbum ant
Very hairy ants with deeply pitted ‘skin’; hairs golden. Slow moving, they tend to hunt singly from small colonies of a few dozen individuals, with ergatoid queens [Wikipedia says: An ergatoid (from Greek ergat-, "worker" + -oid, "like") is a wingless reproductive adult ant, anatomically intermediate in form between workers and winged queens or males.]
They have powerful stings and should be handled with care!
The nests are shallow, generally under stones. A widely-distributed species, from the Cape to Mozambique, Zimbabwe and Cameroun.
Some photos of the species are at:
This genus used to be lumped with Pachycondyla, but has recently been separated; see
Schmidt, C. A.; Shattuck, S. O. 2014. The Higher Classification of the Ant Subfamily Ponerinae (Hymenoptera: Formicidae), with a Review of Ponerine Ecology and Behavior. Zootaxa 3817(1):1-242. PDF 142616
News of the revision is at http://www.myrmecos.net/2014/06/18/
Arnold’s taxonomic description of the species is at
Survive invasive species:
Linepithema humile : Argentine ants : No
Pheidole megacephala : House ants : unknown
Lepisiota sp. : Small Black ants : unknown
Technomyrmex albipes : White-footed ants : unknown
Anoplolepis gracilipes : Yellow Crazy ants : unknown