J. RAMOS-ELORDUY BLÁSQUEZ, E. M. COSTA-NETO, and I. LANDERO-TORRES, “Comparison of edible bee species from Sierras of Jibóia (Bahia, Brazil) and Zongolica, (Veracruz, Mexico)”, Rev. Colomb. Entomol., vol. 35, no. 2, pp. 217–223, Jul. 2009.