Wasp. Coloured scanning electron micrograph (SEM) of a wasp. Unlike the equivalent structure in bees (the proboscis) the wasp has a short tongue that is used for licking not sucking. There are feelers attached on each side. Other structures seen here are the mandibles, compound eyes, front legs and maxillary palps. Magnification: x20 when printed at 10 centimetres across.