(formerly known as Langia tropicus)
SMERINTHINAE, SPHINGIDAE, BOMBYCOIDEA
(Photo: courtesy of Joss & Craig Dunster, Derby, Western Australia)
The early instars of this Caterpillar are pale green, with lots of white warts and a brownish straight tail spike which is about twice as long as the body width.
The last instar only has warts on the head, thorax and claspers. The mature caterpillar has a white line along each side, and a narrow white or pink band between segments. There are also pink tubercles around the head and claspers,. and it has a very short pink horn on the tail.
The caterpillar has been found feeding on plants in STERCULIACEAE, such as
The caterpillars grow to a length of about 7 cms. They pupate underground if the soil is friable, at a depth of about 12 cms. Otherwise they pupate in crevices or ground debris. The pupa is dark brown, and has a length of about 4.5 cms.
The wings of the adult moths of this species have a greyish brown pattern, The forewings have scalloped margins, and have a recurved hind margins. The hindwings have a recurved margin near the tornus. The moths have a wingspan of about 8 cms. In its resting position, the moth is inclined to curve its abdomen upward.
The species occurs across the tropical north of Australia, including
Further reading :
Ian F.B. Common,
Moths of Australia,
Melbourne University Press, 1990, fig. 42.4, p. 416.
Maxwell Sydney Moulds,
A new species of Langia Moore (Lepidotera: Sphingidae) from northern Australia,
Australian Entomological Magazine,
Volume 10, Part 5 (1983), p. 75.
Maxwell S. Moulds, James P. Tuttle and David A. Lane.
Hawkmoths of Australia,
Monographs on Australian Lepidoptera Series, Volume 13 (2020),
pp. 160-163, Plates 36, 79, 88 .
Tropical Queensland Wildlife from Dusk to Dawn Science and Art,
LeapFrogOz, Kuranda, 2015, p. 206 (listed as Imber tropicus).
(updated 8 November 2011, 14 December 2013, 30 December 2015, 19 February 2016, 29 March 2020)