Pete Oxford / Paper Wasp (Polistinae) nest, Yasuni National Park, Amazon, Ecuador

Nick Upton / Paper wasp (Polistes associus) taking moisture from beach sand, Samos, Greece, August.

Konrad Wothe / Wasp (Polistes nimpha) constructing nest, Upper Bavaria, Germany

Pete Oxford / Paper Wasp (Polistes versicolor), an introduced species, group starting to build a hive, Puerto Ayora, Santa Cruz Island, Galapagos Islands, Ecuador

Nick Garbutt / Social paper wasp colony (Polistinae) on nest. Lowland rainforest, Masoala National Park, Madagascar. (digital composite image)

Murray Cooper / Wasp (Vespidae) nest, Amazon, Ecuador

Jasper Doest / Common Paper Wasp (Polistes exclamans) group building nest, Texas

Jasper Doest / Common Paper Wasp (Polistes exclamans) group building nest on a cactus, Texas

Michael & Patricia Fogden / Paper Wasp (Polistes instabilis) trio, Costa Rica

Albert Lleal / Paper Wasp (Polistes gallicus) on nest, Europe

Silvia Reiche / Paper Wasp (Polistes bischoffi) building a nest, Saint-Jory-las-Bloux, France

Thomas Marent / Wasp (Polistes nimpha) constructing nest, Switzerland

Michael Durham / Chinese Paper Wasp (Polistes chinensis) flying, western Oregon

Michael Durham / Chinese Paper Wasp (Polistes chinensis) flying, western Oregon

Tui De Roy / Chinese Paper Wasp (Polistes chinensis) group tending nest, Baja California, Mexico

Jim Brandenburg / Paper Wasp (Polistes metricus) nest with individuals at entrance, Minnesota

Mitsuhiko Imamori / Paper Wasp constructing nest, Shiga, Japan

Mark Moffett / Paper Wasp (Polistinae) nest, Peru

Mitsuhiko Imamori / Chinese Paper Wasp (Polistes chinensis) adult removing moisture from the nest to protect the larvae, Shiga, Japan

Jasper Doest / Common Paper Wasp (Polistes exclamans) group building nest on a cactus, Texas