 "P. dominula" has a more generalist diet than many other "Polistes" species, giving it a more flexible selection of prey.One study in Europe found that the prey items brought back to nests by "P. dominula" colonies represented three insect orders while in contrast, North American "Polistes" primarily only use caterpillars to feed their offspring.Some other theories, however, suggested not that individuals have a more general diet, but that the response of colonies may be more opportunistic relative to resources.