Measured 3D trajectories and wingbeat triggering times.

<p>(A) Hoverflies’ XY trajectories in all the trials in which flight was initiated before 150ms. Trajectories were stopped at the moment were animals overpass 0<i>cm</i>.<i>s</i><sup>−1</sup> vertical speed. Green lines correspond to stabilized flights, blue one to non stabilized flights. Red arrows indicate the direction between the start and the end of stabilized flight. Red dotted lines give the outlines of the experimental box. The high-speed camera is positioned approximately in coordinate (0,-100). The values on the X-axis are width coordinates and those on the Y-axis are depth coordinate. (B) Height of the hoverflies’ flight during the trials in which flight was initiated before 150ms. Green lines correspond to stabilized flights, blue lines to non stabilized flights. (C) Histogram of the times to initiate wingbeat after the onset of the fall observed during the experiments. Distribution has been fitted with both normal (red) and lognormal (green) rules distribution giving mean Δ<sub><i>WB</i></sub> respectively equal to 103.121<i>ms</i> and 103.11<i>ms</i>.</p>