What type of ants are known for nesting in or under pavement cracks?

Pavement ants are recognized for their distinctive nesting behavior, particularly in urban environments. They typically create nests in or under cracks in pavement, sidewalks, and driveways. This adaptability allows them to thrive in areas where other nesting options may be limited. Their presence is often indicated by small mounds of soil that can be seen in these locations, which indicates their activity.

The other choices do not exhibit this specific nesting behavior. Yellowjackets, for example, are wasps that typically build their nests in soil or above ground, but they do not specifically nest in pavement cracks. Firebrats are more associated with indoor environments, particularly in warm, humid areas, and do not nest in pavement. Giant European Hornets, similar to Yellowjackets, build their nests in trees or structures, rather than in pavement. Therefore, the unique nesting preference of pavement ants in pavement cracks directly supports why this answer is the correct one.