Pollen harvest by workers of Scaptotrigona depilis (Moure, 1942) were identified in the region of Dourados, Mato Grosso do Sul, during the period of September, 2006 to August, 2007. From the 42 pollen types collected, the more representative ones during this period were those from the Myrtaceae (Eucalyptus spp.) and Mimosaceae family. The peaks for the values of the trophic niche breadth (H') in September (2.32), November (2.29) and October (2.02) showed that these bees can be generalist, depending upon availabilities and characteristics of flower sources. The values for equitability (J') also showed more uniform use of pollen sources during these months. The meteorological features (temperature, relative humidity and rainfall) did not show a direct relation to equitability and niche breadth. Equitability and niche breadth seem to be more related to the daily or seasonal cycles of pollen and nectar production.
Diversity; floral resource; pollination; stingless bees
