Xylocopa bees are also known as Carpenter Bees. Sometimes they're called Large Carpenter Bees to distinguish them from the Ceratina, the Small Carpenter Bees.
Xylocopa comprises roughly 500 species! The name carpenter bee refers to their tendency to drill into plant materials, such as bamboo and wood. They use the chewed-up pulp to partition each cell, in which they lay an egg.
There is one subgenus in the group which comprises ground-nesting bees.
Sometimes, they may end up excavating into human-made structures. Their nesting won't cause too many problems, because they'll rarely excavate deep enough to compromise structure stability. However, birds such as woodpeckers can sometimes intensify problems when they repurpose old nests.
Some Xylocopa bees are known to have special relationships with mites. The bees even possess a specialised structure on the body, similar to a pouch, to house them.
They're important pollinators of plants which produce open-faced or lidded flowers. Although, they're also known to be nectar-robbers of tubular flowers possessing deeper nectar stores.