Wasps are distinguishable from bees by their pointed lower abdomens and the narrow "waist," called a petiole, that separates the abdomen from the thorax. They come in every color imaginable, from the familiar yellow to brown, metallic blue, and bright red. Generally, the brighter colored species are in the Vespidae, or stinging wasp, family.
Wasp species are categorized as social or solitary. As their name implies, social wasps live in colonies, which may number in the thousands. Within these colonies, female workers, perform all other duties within the nest. Solitary wasps live alone and rarely build nests. They do lay eggs, but their eggs are left alone to hatch.Some wasps are predatory, while others are parasitic. Predatory wasps serve an important role in pollination. Parasitic wasps typically assist in the management of other pests. Some wasps are aggressive species, which sting when threatened, and, unlike bees, wasps are capable of stinging multiple times.