Polen worker corbiculae of Apis mellifera were analised during a period of two years in the municipality of Ji-Paraná(RO). It was verified that of the 126 pollen types collected, only a small part (12,0%) was intensely exploited by the africanized honey bee, namely, Cecropia sp., Orbignya martiana, Poaceae tipo, Cosmos caudatus, Cocos nucifera, Cynometra sp., Mimosa pudica, Cissus sp., etc. which had their polen collected for more than ten months. The pollen collected by Apis, at the study site, is not related to climatic change but rather to the flowering period of the sources. The workers collected most pollen types, a total of 41, in February of 1988; March, November of 1989 and January of 1989 were the months when the workers collected the least number of plant species, a total of eleven types.
Pollen; Apis mellifera; Plant species