Paper wasps in Australia build small, umbrella-shaped nests made from chewed wood fibers, often attached under eaves, roof edges, fences, or sheds. Species like the Paper Wasp are generally less aggressive than other wasps but will sting if their nest is disturbed. Their stings can be painful and may cause allergic reactions in sensitive individuals. Prevention includes sealing entry points, regularly inspecting sheltered areas, and safely removing small early-stage nests or contacting professionals for larger infestations.