Early instars of this species are green with a pale yellow dorsolateral line each side of the body and a dark tail spine.

late instar, green form
(Photo: courtesy of Tom and David Sleep, Queensland)

Later instars of these caterpillars have a row of seven half-eyespots along each side of the body. The spots consist of a round black spot half surrounded by a white semicircle, and this outlined by a black semicircular line. There is a yellow line along each side, just under the row of eyespots. The mature caterpillar has a short backward curving tailhorn.

late instar, brown form
(Photo: courtesy of Tom and David Sleep, Queensland)

The caterpillar has two forms: green and brown. Although many food plants have been recorded, the illustrated specimens were found feeding on :

Water Primrose ( Ludwigia octovalis, ONAGRACEAE ).

(Photo: courtesy of Tom and David Sleep, Queensland)

The pupa is elongated, and has dark and light brown striations.

(Photo: courtesy of Tom and David Sleep, Queensland)

The adult moths of this species have light brown fore wings with a dark stripe from base to apex. The moths have plain brown hind wings. They have a wingspan of about 5 cms.

(Photo: courtesy of Tom and David Sleep, Queensland)

The eggs are laid singly. They are spherical and smooth, and pale green.

an egg, magnified
(Photo: courtesy of Tom and David Sleep, Queensland)

The species is found over south-east Asia, including :

Thailand,

as well as in Australia.

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Australian butterflies

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