Stingless bees are considered of great importance for the ecosystem by many authors because of their efficiency as pollinators. The present work studied the tolerance of workers of Scaptotrigona postica (Latreille, 1807) to temperature changes in order to determine the lethal thermal limits for high and low temperatures (LT - lethal temperature) during summer and winter. The results showed a tolerance interval between -3,5ºC and 40ºC in summer and of 4ºC up to 39,5ºC in winter for 50% of mortality (LT50). The thermal limits at 100% of mortality (LT100) was between 5ºC and 41ºC in summer and between 5ºC and 40,5ºC in winter.
Lethal temperature; stingless bees; temperature limits; thermal tolerance
