A preliminary simulation model of movement of larvae ofCulex pipiens molestus (Diptera: Culicidae) (Experimental studies on the dispersal of insects, II)

Summary Experiments for analyzing the movement and dispersal of larvae ofC. pipiens molestus were made and preliminaly simulation models were constructed. The models were based on two distributions, the distance and direction of movements between 1 minute intervals. The distribution of distance is represented by a unimodal curve, and that of angle by a bimodal one. The results of simulation reasonably depicted the actual process of movements. Nevertheless, the simulated time-dispersal curves overestimated the number of dispersed individuals. This might be due to mutual attraction among the larvae. Contribution No. 68 from the Lab. of Entomol. Fac. Agric. Hirosaki Univ.