Fig. 7. Five images demonstrating the consistency of the flow structures found over Manduca. All were captured with the light sheet at the centreline of the animal and show vectors with the freestream velocity of 3.5 m s^-1 subtracted. Each image shows a leading-edge vortex (LEV) over the centreline of the thorax marked by a blue vorticity maximum. For clarity only every other vector is shown (actual vector resolution is twice that presented along each axis).