Umbrites are robust bipeds averaging 1.6 to 2 meters tall, with deep-set eyes and a set of powerful pincers on their faces. Descended from a species of subterranean tunnelers, Umbrites are impressively strong and well-adapted to low-light conditions.
Despite a vaguely mammalian biology, Umbrites reproduce much like insectoids. Umbrites have three genders-males, sterile females, and fertile females. Before the Umbrites developed technology and civilization, males existed only to fertilize the females, and once born the resulting young were fed and raised by the sterile females. But while their biology has remained the same, Umbrites have over the millennia developed more egalitarian ways of handling reproduction and child rearing.
Umbrites come from the densely populated planet of Zhu-Zhu Hwai in the Triangulum Galaxy, where eight billion citizens live in elaborately constructed underground warrens ranging in population from hundreds to the 185 million who live in Plyx Gribnath, the Umbrite captial.
As befits their insectoid social structure, Umbrites tend to be highly cooperative beings, renowned for their deep friendships with other beings (even across species lines) and loyalty. Umbrites have also adapted particularly well to life in a starfaring civilization, perhaps because the confined spaces of space travel remind them of life in the warrens of home. During the Commonwealth era, many Umbrites served on starships and orbital stations, and to this day Umbrites can still commonly be found living on Drifts, spacecraft and other celestial habitats.