X. virginica have unique maxillae that are designed to perform perforations on corolla tubes to reach nectaries. Their maxillae are "sharp and wedge-shaped", allowing them to split the side of corolla tubes externally to access the nectar. The Eastern carpenter bees also have galae on their maxillae that are shaped like large, flat blades. Research has shown that individuals with sharp galae can use these to further aid in penetrating the corolla tubes. Learn more about Eastern Carpenter Bee