Proliferan

The Proliferans were a species of sentient humanoids which looked very much like large, semi-upright red ants. They were excellent at digging, often using their skills to dig under enemy forces and waylay them when they got close. They had their own empire, known as the Proliferan Empire which was in turn ruled by a monarch. At the time of the Galactic Civil War, the ruler was Queen Yentuki.