Ramos-Elorduy, J. 2006. Sociobioeconomical diagnostic of the Oaxacan grasshopper Sphenarium purpurascens Charpentier, 1842 (Orthoptera: Pyrgomorphidae) in Mexico. SITIENTIBUS série Ciências Biológicas. 6, Especial (Mar. 2006), 80–92. DOI:https://doi.org/10.13102/scb8153.