Andrena is a scientific name for a type of bee, commonly known as mining bees or ground bees. There are several synonyms for the word Andrena, such as ground bee, sand bee, and mason bee. These bees are known for their ability to burrow into the ground and create small nests. They are also known for their important role in pollinating plants and flowers. Other synonyms for Andrena include solitary bee, miner bee, and specialist bee. These bees are often found in gardens, fields, and meadows and are an essential part of many ecosystems. It's important to care for these bees and protect them by avoiding the use of harmful pesticides and preserving their natural habitats.