A comparative palynological analysis of pollen resources of various stingless bees and honeybees revealed a considerable overlap of pollen spectra of these bees. However, certain pollen types were of different importance to the various bee species. Colonies of the same Melipona species had a very similar spectrum. The widths of the pollen spectra of the different bee species appeared more related to the natural population size of the colony than to the body size of the bees.