A system model for woodland poolAedeswas constructed and a computer simulation implementing the system model was constructed and refined for populations ofA. stimulans-fitchiimosquitoes. Information and data utilized in the model construction were obtained from surveys conducted in Michigan state parks and an extensive literature review. Dynamics of the mosquito's life cycle and of the woodland pool ecosystem were modeled and the resultant equations are described. Assumptions used in the modeling process are briefly discussed in order to show the reasoning process underlying the use of these equations in the simulation. A description of computer program structure and data files utilized by the program is given. Research on and refinement of the physical components consisted of measurements during 1973 on aquatic parameters chosen as key factors in immature mosquito dynamics and meteorological features oriented as stimuli to these parameters. The resultant data were statistically analyzed to obtain the best available model for maximum water temperature, dissolved oxygen concentration and water depth.