Fig. 1: Insects flying around a light source in the field display 3 common behavioural motifs not seen in normal flight.

The unusual flight motifs were: a Orbiting, b Stalling, and c Inverting. (Above) Diagrammatic representations of the three behavioural motifs. (Below) Overlaid flight trajectories of insects performing these characteristic patterns around UV light sources. Overlaid frames are separated by aesthetically chosen fixed intervals of 52 ms (left), 20 ms (middle), and 24 ms (right) for visualization.