Abstract
Life table data from a laboratory strain of Tribolium confusum (DuVal) were obtained for use in deterministic and stochastic models of population growth under optimal environmental conditions. Frequency distributions of mortality, developmental time, and age-specific fecundity schedules taken from experiments conducted at five constant temperatures were transposed onto a physiological time scale measured in degree-days. Data of this detail were necessary for use in models that could predict the growth of laboratory populations of the same strain of beetle reared under optimal conditions.