Fig. 6. Graphs of leg and body movements during the jump by Graphocephala shown in Fig. 3. (A) Six points on the legs and body (indicated in the cartoon) are plotted against time for 7 ms preceding and 3 ms following take-off. Zero on each axis represents the position of the body before any jumping movements began. The first movement of a hind leg started 5.75 ms before take-off (left black arrow and yellow bar). The middle legs lost contact with the ground 3.75 ms before take-off and the front legs 2.5 ms before take-off. (B) Sequential movements of the same points as the insect jumped through the field of view of the stationary camera. The vertical co-ordinate of a point is plotted against its horizontal co-ordinate, with each point separated by 0.25 ms in time. The horizontal arrowheads and the linking lines indicate the positions at take-off and allow the corresponding positions of these points to be read frame by frame at different times during the jump.