Wasp foot. Coloured scanning electron micrograph (SEM) of the foot of a common wasp (Vespula vulgaris). This is the final segment of the leg, known as the tarsus. It contains two claws (brown) and a suction pad, or plantula (yellow, between claws), that helps the wasp to grip smooth surfaces. The hairs on the leg are used to groom the wasp's body and wings. Magnification: x100 when printed at 10 centimetres tall.