• Royidris in Myrmicinae, Crematogastrini: Ward et al., 2015: 17.

Citations

• Bolton, B.; Fisher, B. L. 2014. The Madagascan endemic myrmicine ants related to Eutetramorium (Hymenoptera: Formicidae): taxonomy of the genera Eutetramorium Emery, Malagidris nom. n., Myrmisaraka gen. n., Royidris gen. n., and Vitsika gen. n. Zootaxa 3791 (1):1-99. PDF
• Cantone, S. 2017. Winged ants – The male. Dichotomous key to genera of winged male ants in the world. Behavioral ecology of mating flight. São Paulo: Autopubblicato, 318 pp. PDF
• Ward, P. S.; Brady, S. G.; Fisher, B. L.; Schultz, T. R. 2015. The evolution of myrmicine ants: phylogeny and biogeography of a hyperdiverse ant clade (Hymenoptera: Formicidae). Systematic Entomology 40:61-81. 10.1111/syen.12090 PDF