Acidoproctus maximus Piaget, 1878

Acidoproctus maximus Piaget, 1878: 183, pl. 12, figs E, F.

San Luis Potosí: Dendrocygna autumnalis autumnalis, Tamuín, 19 Sep. 1946, C. Shaw (Carriker 1954a). Types: Holotype male and allotype female of Acidoproctus hopkinsi mexicanus deposited in USNM (65423). Note: Specimens of A. maximus were described by Carriker (1954a) as “ Acidoproctus hopkinsi mexicanus, n. subsp. ”.