Sanetra, Matthias, and Robert Güsten. 2001. “The Socially Parasitic Ant Genus Strongylognathus Mayr in North Africa (Insecta: Hymenoptera: Formicidae)”. Zootaxa 20 (1). Auckland, New Zealand:1–20. https://doi.org/10.11646/zootaxa.20.1.1.