1.8 to 5.5 centimeters. 0.7 to 2.1 inches.
Their colors are red-brown, dark brown, yellow and combinations of these colors. Other wasps colors are white, orange or red on a dark body in addition to the classic yellow on black.
Adult wasps spend most of their time preparing their nests and foraging for food for their young. Wasps are divided into two subgroups: social and solitary. Social wasps account for only about a thousand species and include formidable colony-builders. Social wasp colonies are started from scratch each spring by a queen who was fertilized the previous year and survived the winter by hibernating in a warm place.