Size: Females 25 to 35 mm, males 15 to 25 mm
Adult Description: Colour can vary from brown to greenish in both sexes and during swarming, the males can be bright yellow. In profile the head is raised above the saddle shaped thorax. The top of the thorax has a faint 'X' mark, with the rear half more prominent. The rear of the thorax is wider than the head. The rear leg femur has two distinctive dark triangles and the tibia colour varies from pale straw to pink and orange but as red as in the Australian plague locust. Hind wing is clear with a dark margin on the forward edge only. Throat peg absent.