Macias-Macias, J.O., Quezada-Euan, J., Tapia-Gonzalez, J.M. and Conteras-Escareño, F. 2014. Nesting sites, nest density and spatial distribution of Melipona colimana Ayala (Hymenoptera: Apidae: Meliponini) in two highland zones of western, Mexico. Sociobiology. 61, 4 (Dec. 2014), 423–427. DOI:https://doi.org/10.13102/sociobiology.v61i4.423-427.