Tests of the breeding system were performed. Th e guild of visitors was described according to richness, abundance, relative frequency and constancy. Th e breeding system tests indicated that D. kunthii is self-compatible. Th e pollination system was characterized as generalist, with 39 visitor species, from three diff erent orders. Bees were the main group of pollinators, thus some behavioural aspects were described. Th e period of highest foraging activity was between 7 and 10 am. Some species presented agonistic and monopolistic behaviour. Given the behaviour and destructive potential, the Curculionidae seem to have a greater impact as seed predators than pollinators.