Wasp

The various species of wasps fall into one of two main categories: solitary wasps and social wasps. Adult solitary wasps live and operate alone, and most do not construct nests (below); all adult solitary wasps are fertile. By contrast, social wasps exist in colonies numbering up to several thousand individuals and build nests—but in some cases not all of the colony can reproduce. In some species, just the wasp queen and male wasps can mate, whilst the majority of the colony is made up of sterile female workers.