As caterpillars, Red-spot Duke exhibit mimicry by resembling bird droppings, a clever strategy that helps them avoid predators during their most vulnerable stage.
   Adults are frequently seen drinking juices from old, rotting fruits.

   They indiscriminately seek out such sources of nutrition, whether these are in the shade of the forest or in drier and sunnier open areas.

   They are most commonly seen on wing from January to March.

   Male dorsal sides are somewhat dark metallic green. Dorsal fore wings have cells with two median sinuous short black transverse lines with a crimson spot between them, two similar lines beyond, one before, one after the apex of the cell followed by a dark irregular transverse shading between the veins. The apex of the wing is broad and the termen narrowly edged with an obscure dark shading.

   Hind wings have a slender black loop in the cells with very obscure discal and sub terminal dark macular bands and the anterior third of the wing is purplish.
   Ventral sides are sap green, largely suffused with dull grey. Fore wings have the transverse black slender lines and crimson spot as on the dorsal side. A very obscure subterminal series of dark spots parallel to the terminal margin.

   Hindwings have three crimson spots encircled by slender black loops near base, and a very obscure subterminal series of dark.spots in

continuation of that on the fore wing, but obsolescent posteriorly.

   The antennae brown with the head with a crimson streak behind the eyes;.

   Thorax and abdomen are greenish brown.

   Females are very similar, with precisely similar markings above and below, but the ground color on the dorsal side is paler and especially pale on the terminal halves of the wings, in contrast with the darker basal portions.

   Both sexes will have orange antenna tips and a yellow proboscis.​