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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.
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