The Velvet tree ant is characterized by which of the following traits?

The Velvet tree ant is notably recognized for its unique velvet-like appearance and its behavior of nesting in trees. This distinguishing feature reflects the ant's adaptation to its environment, often seen in forested regions where they can find suitable nesting sites in the tree hollows or under the bark. The velvet texture of their bodies is a significant characteristic that helps in identifying them among other ant species, making option C the most accurate choice.

Understanding the specific traits of the Velvet tree ant is crucial for pest control operators, as it aids in proper identification and informs effective management strategies. These ants have a distinct look and ecological behavior that differentiate them from many other ants, which may not have similar nesting preferences or physical characteristics.