Acromyrmex ameliae differs from Acromyrmex insinuator (another social parasite) not only by its size and color (brown dark against yellowish-orange) but as well it does not present a single strong median ruga extending from the central ocellus to the level of the posterior borders of lateral ocelli, like A. insinuator.
The head is free and mobile and dichoptic in both sexes and has three ocelli arranged in a characteristic depression formed by the elevation of the compound eyes.
Walter Wilson Froggatt reported that the common name was used by Sydney children in his 1907 work Australian Insects, referring to the colour of the ocelli.