1. The fact that the emergence of the newly hatched larvae in the nest of Polistes chiensis antennalis Perez may be the limiting factor to the rate of cell construction and oviposition of the founding female was again as curtained in the present study. Namely, the emergence of the newly hatched larvae stops or delays the increase of cells or ovlposition. 2. Even if apart of eggs and larvae are removed artificially from the nest (this means the increase of empty Cells), the rate of oviposition of the founding female does not increase. There is no definite relation between the number of empty cells and the rate of oviposition during a short initial period. Therefore, the stimuli of oviposition do not appear to be related both to the number and the increase of emptycells. 3. The characteristic feature that the female wasps tend to deposit their eggs to the cell-walls facing to the centre of the comb may be ascribed to the following reasons : 1-it is the natural attitude of the females in their earlier life that they grasp the entrance of the cells at their oviposition ; 2-it seems to be a natural habit of this wasp that the females lay their eggs intensively into the empty cells at the central area of the comb rather than those of the outer rings. 4. The disappearance of the eggs in some cells is highly correlated with the hatching of the young larvae in the other cells. This phenomenon can be explained from the fact that the young larvae are often fed with comparatively newly laid eggs which are attached to the cell-walls of the outer rings of the comb.
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