Eciton (Acamatus) arizonense Wheeler, 1908h: 414, pl. 26, fig. 5 (m.) U.S.A. (Texas, New Mexico, Arizona). Nearctic.

Primary type information: Primary type material: syntype males (number not stated). Primary type localities U.S.A.: Texas, Brownsville (C. Schaeffer), Texas, Austin, 27.vi. (M. Holliday), U.S.A.: New Mexico, Las Cruces (T.D.A. Cockerell), U.S.A.: Arizona, Nogales, 31.vi. and 15.vii. (E.J. Oslar) (invalid restriction of type locality by Smith, 1942c: 582; no lectotype designated). Primary type depositories: AMNH, MCZC.