0.05) in all three colony categories with peak activity between 06.00-09.00 and between 14.00-17.00 while in the range of 09.00-14.00 bees kelulut decreases its activity. The activity of the kelulut bees was recorded to increase in the temperature range of 24-30 ℃ and the humidity range of 80-95% but at temperatures above 30 ℃ and the humidity below 80% the activity of the kelulut bees decreased, this indicates that the activity of the kelulut bees is influenced by environmental conditions, especially air temperature and air humidity. Keywords: stingless bees, daily flying activity, productivity, microclimatic conditions, Tetrigona apicalis." />