The present paper deals with effects of temperature on development and growth of Chilocorus bijugus Mulsant population. The results show that the most favourable temperature of development falls in the range of from 18℃ to 23℃. The lowest and highest threshold temperatures are about 5℃ and from 38℃ to 41℃, respectively. The highest and lowest survival rates occur at 25℃ and 31℃, respectively. The supercooling point is measured to be in the range of -4.26℃ through -5.60℃ during the hibernating period. The in...