Paper wasps get their name from the paper like material from which their nest are made. These nests are begun in the spring, by fertile over-wintering females. Nests are compromised of man cells; each cell wall is made of wood pulp similar to that from which paper is made. The nests are frequently located under leaves of houses, but may also be found inside garages, in attics and other protected areas. They also like orchards and vineyards. Nests are often quickly rebuilt when destroyed, as several adults will cooperate to form a new nest. Paper wasps are yellow and black, and are about ¾ inch in size. Their sting can be quite painful-and they will aggressively protect their nests.