The Lyssarian Prime Conclave was the lead government of the Lyssarrians.
Prior to 2153, the Lyssarrian Prime Conclave declared the creation of mimetic simbiots using Lyssarrian desert larvae illegal, due to the ethical ramifications of creating living, sentient beings. This dictate was defied by the Vilandran Circle, a group of Lyssarrian scientists, whose illegal research on simbiots had led them to make largely unsubstantiated claims of a way to stop the rapid aging process. (ENT: "Similitude")