Illustration showing Argus ocellatus & Argus bipunctatus (fourth feather) From A monograph of the Phasianidae, or, Family of the pheasants By Daniel Giraud Elliot (1835-1915)
Date before 1915
Source http://extinct-website.com/extinct-website/product_info.php?cPath=22_31&products_id=391
Author Daniel Giraud Elliot (1835–1915)
Source: https://commons.wikimedia.org/wiki/File:Argus_ocellatus_%26_Argus_bipunctatus.jpg

1,2,3. Argus ocellatus = crested argus (Rheinardia ocellata)
4. Argus bipunctatus = mutant of great argus pheasant (Argusianus argus)

The crested argus (Rheinardia ocellata) are large and spectacular pheasant like-peafowl with dark-brown-spotted black and buff plumage, a heavy pink bill, brown irises and blue skin around the eyes. The head has two crests; the hind crest, which extends down the occiput, is erected when alarmed and during intentional behaviors including pair bonding and courtship displays. A shy and elusive bird, the crested argus is found in submontane primary forests of Vietnam, Laos and Malaysia in Southeast Asia.

The great argus pheasant (Argusianus argus) is a species of pheasant. The scientific name of the Great Argus was given in reference to the many eyes-like pattern on its wings. Argus is a hundred-eyed giant in Greek mythology. The great argus is native to the jungles of Borneo, Sumatra and the Malay Peninsula in southeast Asia.

The double-banded argus, Argusianus bipunctatus, was long considered a potential second species of argus pheasant which is known only from the portion of a single primary flight feather. It was described in 1871 from this feather piece, found in a millinery shipment imported to London. Its origin was hypothesized to be from Java, Indonesia or Tioman Island of Malaysia, because of the great argus' absence from these locations. Parkes (1992) vehemently rejected the "species" validity and argued that the double-banded argus almost certainly represents a mutant form of the great argus.