Northern Prairie Wildlife Research Center
No Common Name (Amblycheila cylindriformis [Say])
This flightless nocturnal species is also known as the giant plains tiger beetle. It is the largest tiger beetle in the United States (30-36 mm). It ranges from dark reddish brown to black in coloration, with no other colors or maculation present. It is most commonly encountered in eroded gullies, dissected loess, and clay hill banks. This species is generally considered to be uncommon throughout its range. Adults typically emerge during the summer months.