The behavior and mating duration of virgin Lasioderma serricorne adults was studied under two sets (temperatures 27.5 ± 0.5°C and 24 ± 0.5°C, Rh 65 ± 3% and 75 ± 3% correspondingly) of controlled climatic conditions. It was found that copulation, estimated from the moment the adults were found in “end to end” position up to the moment that the male and female separated from each other, fluctuated from 48 to 130 min for the two above mentioned conditions. No statistically significant differences were observed between the two sets of controlled climatic conditions used (dt  =  78, t  =  1.3, P  =  0.197). Although damage in stored tobacco is mainly caused by the insect's larvae, it was found that 4% of male and 9.4% of female adults also fed on dried tobacco leaves.