Amblycheila cylindriformis  Amblycheila cylindriformis is a species of flightless tiger beetle. It shares its genus with at least five other species in the United States, with a few more found in Mexico. The beetle is nocturnal and flightless, and lives in grassland areas of the Great Plains; far-southwestern South Dakota seems to be the northernmost limit of its habitat. "A. cylindriformis" can be found walking along bare ground at night, and can be collected in pitfall traps.