The Argus monitor (Varanus panoptes) is a monitor lizard found in northern regions of Australia and southern New Guinea. It is also commonly known as the yellow-spotted monitor. There are at least two Australian subspecies: the one in Western Australia is Varanus panoptes rubidus (rubidus referring to its reddish coloration), while the subspecies from Arnhem Land, the Kimberley and Cape York Peninsula is Varanus panoptes panoptes. The New Guinea variety is Varanus panoptes horni.