Solenopsis invicta x richteri

Solenopsis invicta X richteri, is a hybrid between S. invicta (the red imported fire ant) and S. richteri (the black imported fire ant). The hybrid fire ant, along with both S. invicta and S. richteri, is a major agricultural and urban pest throughout the southeastern states that also causes both medical and environmental harm resulting in a cost of many millions of dollars per year for southeastern states.