What do mud dauber wasps have in common with carpenter bees?

Mud dauber wasps and carpenter bees share the characteristic of lacking a worker caste within their social structure. This means that in both species, there is not a distinct division between workers and reproductive individuals, which is more commonly found in bees like honeybees or ants.

Mud daubers are solitary wasps that do not have a complex social structure, whereas carpenter bees can show some social behaviors but also do not form colonies with worker bees. Their reproductive strategy involves females that create and provision nests without the assistance of a worker caste.

This particular trait differentiates them from many other types of bees and wasps, which typically have a clear hierarchy with specialized roles. Understanding the social structure of these insects helps in grasping their behavior and nesting habits.