Bolton, B.; Fisher, B. L. 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 2014, 3791, 1–99.