Xchagger

In Star Control 3 the Xchagger are a microscopic race of sentient parasites who typically live on Ortogs. At one time there were many such Xchagger colonies, until all but one was exterminated by the Hegemonic Crux. Following this attack, the Daktaklakpak kidnapped many Xchagger (these abductees were known to the last colony as the "Lost Dynasties") and used them as a biological weapon against the Harika & Yorn. Ultimately the Dynasties were extracted from the Harika by advanced technology, and returned to the Xchagger colony.