The Proliferans were a species of sentient non-humanoids who resembled large red ants, native to the Outer Rim planet Prolifera. 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.