Not all beetle larvae look the same. Some beetle larvae are flat and move very fast. To describe these larvae, scientists use the descriptive word campodeiform. Some beetle larvae look similar to hard worms with tiny legs. These have an elateriform shape. Click beetle larvae have a special name: wireworms. Other beetle larvae are short and very thick and are called grubs. In a few beetles, the larvae change their shape after some time. Blister beetle larvae start out moving fast, such as campodeiform larvae, but end up slow and thick.