Some insects display a rudimentary sense of numbers, such as the solitary wasps that prey upon a single species. The mother wasp lays her eggs in individual cells and provides each egg with a number of live caterpillars on which the young feed when hatched. Some species of wasp always provide five, others twelve, and others as high as twenty-four caterpillars per cell. The number of caterpillars is different among species, but always the same for each sex of larva. The male solitary wasp in the genus Eumenes is <answer>smaller</answer> than the female, so the mother of one species supplies him with only five caterpillars; the larger female receives ten caterpillars in her cell.
Is the male solitary wasp bigger or smaller than the female solitary wasp?
smaller