Evaluation of oligolecty in the Brazilian bee Ptilothrix plumata (Hymenoptera, Apidae, Emphorini) Clemens Schlindwein, Raquel Andréa Pick and Celso Feitosa MartinsApidologie, 40 2 (2009) 106-116DOI: https://doi.org/10.1051/apido/2008067
