A study of the nesting sites of founding females of Polistes chinensis antennalis Perez shows that their nests seem to be constructed nearest to the habitat of their prey and the fact may be ascribed to the narrowness of their foraging areas. The fact that the nesting sites are most abundantly found on the east side and next on the south side seems to be clearly explained by the following consideration. As founding females start to construct their nests early in the spring when the air temperature is still low, they prefer the comparatively warm places at that time, and consequently the time of their nest construction tends to be frequent more in the forenoon when the air temperature is becoming higher. The microtopography of the nesting sites of this paper wasp has been assumed that stagnation of the air circulation is the matter of prime importance as their nesting sites.
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