Draconian

Draconians are a race of reptilian humanoids. They are intelligent, and have a loosely established civilization on the continent of Xanitar, ruled by the Lizardmen Magi. The magi govern from stone towers on the fringes of deserts and in the mountains. They are also widely known as lizardmen. 
Draconians are reptilian terrestrials that walk upright, most of which lack the ability to fly like the dragons and drakes, while some of them do have draconic wings and can fly. Many of them can also breath fire. They are evolved forms of serpentfolk and other lizardfolk. 
Draconians were the first dragon riders.
Also: Lizardmen, Lizardfolk, Dracon, or Draconii