Probolomyrmex simplex valid New Guinea (Papua New Guinea). Australasia.
Shattuck, S. O.; Gunawardene, N. R.; Heterick, B. 2012. A revision of the ant genus Probolomyrmex (Hymenoptera: Formicidae: Proceratiinae) in Australia and Melanesia. Zootaxa 3444:40-50.   137102