Prenolepis imparis is the first ant to hold mating flights every year in temperate North America. Alates wait out the winter and emerge on the first warm spring days. This photo was taken in early March. Urbana, Illinois, USA
Rover ants mating. This species is introduced to the United States from South America. Tucson, Arizona, USA
A mating pair of potter wasps. Brackenridge Field Laboratory, Texas, USA.
