Sanabria-Urbán, S., Song, H., Oyama, K., González-Rodríguez, A. & Castillo, R.C.D. (2017) Integrative taxonomy reveals cryptic diversity in neotropical grasshoppers: taxonomy, phylogenetics, and evolution of the genus Sphenarium Charpentier, 1842 (Orthoptera: Pyrgomorphidae). Zootaxa, 4274 (1), 1–86.
https://doi.org/10.11646/zootaxa.4274.1.1