Daleon is a small volus colony. It is notable because in around 2183, the quarian Migrant Fleet is passing through a volus-controlled system near the edge of Council Space. According to news reports some volus diplomats have launched an appeal to the Citadel Council to take action and hasten the flotilla's departure, though in the aftermath of the Battle of the Citadel the Council is guessed to have their hands full with other matters.