 Similarly, when compared to "P. fuscatus", "P. dominula" workers were produced about 6 days earlier even when their egg-hatching dates were the same.This indicated that the development times for the larvae and pupae, though not the eggs, were significantly shorter in "P. dominula" than in "P. fuscatus".The precise reasons for "P. dominula" to have such shorter brood development timing is unknown, but a number of conjectures are offered.