The Neo Swarm is a new Zerg brood containing only new and unique strains from ordinary broods led by Cerebrate Artaz'Xorn, who was the seeker of new species for the Zerg army during previous wars between the three races. The Neo Swarm's base is on Plagados, the moon of planet Char. The main function of this brood is to send its newest and best strains to aid the Swarm in its battlefields. The Neo Swarm appears to have no color of its own as its creatures change their colors according to the broods they come to aid.
For the units created by the Neo Swarm, check out the List of Neo Swarm Zerg Units