Fig. 1. Diagram of a dissection of Schistocerca. The dorsal tegmentary nerve supplying the head hairs is indicated as a solid line. The nerves and ganglia are numbered as in Ewer (Ewer, 1953; Ewer, 1954). rn indicates recurrent nerve. The positions of the dorsal longitudinal muscles and elevator muscles are indicated. The controller depressors lie behind the elevators rn this view. Many non-flight structures are omitted.