Apart from two claws the foot posseses two membranous flaps, the Pulvilli, which are covered with tiny hooked hairs. Their adhesiveness enable the fly to 'stick' to almost any surface. Flies use their feet for many purposes. The claws can grab to hold on. The small hairs will adhere to smooth surfaces through surface tension. Other hairs are sensory organs, allowing flies to taste with their feet.

Centre for Microscopy and Microanalysis