Appearance
The forewing is typically 28–45 millimetres long.
Naming
*"Hippotion osiris" larger size and lacks the black venation on the hindwing.⤷ "Hippotion aporodes" may be only a very dark subspecies of "celerio" - in this form, the silvery streak on the forewing is not present but other markings are intensified. In addition, the hindwing is mainly brownish.
Head and thorax as in eson; abdomen with a white spot on each segment between the dorsal white lines; a pair of silvery lateral strigae on each segment. Fore wing paler; some silvery streaks on the median nervure; the nervules beyond the cell streaked with silvery white and black; a silvery-white line from apex to near base of inner margin, followed by some ochreous and pale brown lines; a white submarginal line; the markings are thus similar to oldenlandiae, except that the lines that come out white are different. Hind wing with the base and anal angle bright pink; disk blackish; the outer area ochreous brown, with a black submarginal line and the nervules between it and the cell black. Larva brown; a series of whitish ocelli with darker centers from 4th to 10th somites; horn and underside white.— "The Fauna of British India, Including Ceylon and Burma: Moths Volume I"
Distribution
It is found in Africa and central and southern Asia of India, Sri Lanka and, as a migrant in southern Europe and Australia.
Reproduction
Larvae could be green, yellowish green or even brown. They have a dark broken mid-dorsal line and a creamy dorso-lateral line from the fifth segment to the horn. The head is round, and usually a dull green colour. The larva has a horn which is usually long and straight. There is a large yellow and green eyespot on the third segment and a smaller one on the fourth segment.Larvae typically feed on the leaves of plants such as the grape vine, "Cissus", "Impatiens" and the "Arum" lily.
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