Abstract: An ecological study on the laboratory population of cigarette beetle,Lasioderma serricorne, was carried out under the treatment combination of six levels of temperature (20.3℃ ,23.9℃ ,27.7℃ ,32.2℃ , 33.7℃ ,35.9℃) and three levels of relative humidities (51.3%-55.0% RH, 75.5%-76.0% RH, 83.8%-85.0% RH). Parameters for development, survival and fecundity of cigarette beetle laboratory population were obtained by means of statistics analysis in various rearing experiments. The temperature range for development is 14℃-36℃ , the most optimal temperature and relative humidity are 30℃-34℃ ,70%-85% RH, the generation duration is 35 -128 days, the total effective temperature is 718-758 day-degree, and the average numbers of eggs laid by females are 6-97. The temperature higher than 36℃ and relative humidity less than 51% have adverse influence on survival. Finally, the theoretical models for growth duration,development speed, survival rate, fecundity were constructed.

Key words: Lasioderma serricorne (F.), development duration, total effective temperature, average numbers of eggs laid by females, survival rate, theoretical models