FAMILY SPHINGIDAE
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Theretra clotho Drury
Sphinx clotho Drury, 1773, Illustr. Ex. Ins., 2: 48.
Theretra clotho Drury; Rothschild & Jordan, 1903: 769.


Theretra clotho
(.83 natural size)


Diagnosis.
See T. boisduvali above.

Geographical range. Japan, S. Korea, Indo-Australian tropics to New South Wales and Loyalty Is.

Habitat preference. This is a common, predominantly lowland species. During the Mulu survey almost all specimens were taken in regenerating alluvial forest beside a river.

Biology. The larva has been described by Bell & Scott (1937) and Dupont & Roepke (1941). Early instars are similar to those of other species, with the characteristic markings developing as growth progresses. Again there are green and reddish brown forms of the mature larva. The green form has a dark green dorsolateral line over the abdominal segments; within it are the ocellar markings: large on A1, dark green, ringed yellow and striped with blue; and much smaller, longitudinally oval, pale yellow patches from A2 to A7. In the reddish brown form there is a dark dorsolateral line through the ocelli, and oblique lateral stripes. The anterior ocelli are reddish brown, striped and ringed with yellow; the posterior pale yellow ocelli are thinly ringed with purplish. The horn is purplish brown, thick, downcurved.

Recorded host-plants (Bell &. Scott 1937; Dupont & Roepke, 1941; Pholboon, 1965; Miyata, 1983; Moulds, 1984) are: Amorphophallus, Colocasia (Araceae); Begonia (Begoniaceae); Dillenia (Dilleniaceae); Leea (Leeaceae); Hibiscus (Malvaceae); Fuchsia (Onagraceae); Dendrocnide, Pipturus (Urticaceae); Cayratia, Cissus, Parthenocissus, Vitis (Vitidaceae).

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