Fig. 2. Scanning electron micrographs of Empoasca to show the organisation of the joints of a hind leg and some of their associated proprioceptors. (A) The left half of the body, as viewed ventrally and with anterior at the top. The left hind leg is fully levated about the coxo-trochanteral joint and the distal part of the femur bearing a group of spines fits into a sculpted region of the head capsule. The proximal part of the femur is pressed against a hair row on the coxa. Parts of the left, middle leg distal to the trochanter, and parts of the left, front leg distal to the coxa have been removed to reveal the hind leg more clearly. Scale bar, 250 µm. (B) Further detail of the area in A outlined by the top broken box, to show the engagement of the femoral spines with the sculpted region of the head capsule when the left hind leg is fully levated. Scale bar, 100 µm. (C) Detail of the area in A outlined by the lower broken box to show the proximal femur pressing against the hair row on the coxa (black arrow) when the leg is fully levated. Scale bar, 100 µm. (D) Structure of the hairs (within the broken box in C) making up the hair row. Scale bar, 10 µm.