Ramirez-Freire, Liliana, Glafiro Jose Alanis Flores, Ricardo Ayala Barajas, Humberto Quiroz Martínez, and Carlos Gerardo Velazco Macías. “The Large Carpenter Bees (Hymenoptera: Apidae: Xylocopa spp.) of Nuevo León, México”. Journal of Pollination Ecology 7 (January 2, 2012). Accessed January 28, 2023. https://pollinationecology.org/index.php/jpe/article/view/140.