Sandhopper is a small, beach-dwelling insect that is known for its ability to hop around in the sand. While sandhopper is the most common term used to refer to this creature, there are a few other synonyms that can be used. For example, some people also refer to sandhoppers as beach fleas or sand fleas. Others might use the term sand crickets or sand lice to describe these little bugs. No matter which term you use, though, there's no denying that sandhoppers are fascinating creatures that are an important part of many coastal ecosystems around the world.