Fig. 6. Jumping in Cephalelus. (A,B) Placement of the hind tarsi and leg movements in a jump. (A) Two frames from a jump toward and to the right of the camera. The hind tarsi were placed on the ground lateral to the left and right edges of the body (arrows) and remained in that position at take-off. (B) A jump from the vertical, glass front of the chamber viewed from underneath. The tarsi of the hind legs (arrows) are again placed outside the lateral outline of the body and thus do not touch. The first movements of the hind legs began 2 ms before take-off. Images were captured at 5000 s^–1 and with an exposure time of 0.03 ms. (C) Drawings of the hind legs of Cephalelus to show their movements during the three phases of a jump.