Abstract
AbstractOnly two out of 959 pre‐emergence colonies of the paper waspPolistes snellenide Saussure surveyed between 1989 and 1996 in Sapporo, northern Japan, were found to be two‐foundress colonies, and the others were single‐foundress colonies. The two foundresses in one of the two colonies showed neither aggressive dominance behavior nor clear division of labor between them during a total of approximately 30 h in the first half of the pre‐emergence stage. Although both of the foundresses foraged for pulp and laid eggs, only one foundress foraged for prey and delivered it to the other.
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