Ramalho, M. and Rosa, J. F. (2010) “Ecological interaction between the tiny keel flowers of Stylosanthes viscosa Sw. (Faboideae) and the large bee Xylocopa (Neoxylocopa) cearensis Ducke, 1910 (Apoidea, Hymenoptera), in tropical sand dune”, Biota Neotropica. Sao Paulo, Brazil, 10(3). Available at: //www.biotaneotropica.org.br/BN/article/view/638 (Accessed: 27 April 2024).