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Theretra
silhetensis Boisduval
Choerocampa silhetensis Boisduval, 1879, Hist. nat. Insectes, Spec. Gen.
Lep., 1: 240.
Theretra pinastrina Martyn sensu Rothschild & Jordan, 1903: 783;
auctorum.
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Theretra
silhetensis 
(.83
natural size)
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Diagnosis. See Theretra oldenlandiae
Fabricius.
Geographical range. Indo-Australian tropics east to Samoa.
Habitat Preference. T. silhetensis appears to be commoner than
T.
oldenlandiae, taken in similar agricultural and open habitats in the
lowlands,
Biology. The larvae are exceedingly variable, from yellow green and green
to brown or greyish black ones (Bell & Scott, 1937; Dupont &
Roepke, 1941). All forms are diffusely striped longitudinally, with a row
of small, even, oval dorsolateral ocelli on the abdominal segments; the
ocelli are obscure in darker forms, but dark blue ringed with yellow on A1
and A2 and larger, blue-centred, ringed green, brown, yellow and black on
more posterior segments.
Recorded host-plants (Bell & Scott, 1937; Pholboon, 1965; Miyata,
1983; CIE records; FRIM records) are: Arum, Caladium, Colocasia, Pistia
(Araceae);
Kochia (Chenopodiaceae); Ipomoea (Convolvulaceae); Boerhavia
(Nyctaginaceae);
Ludwigia (Onagraceae); Rosa (Rosaceae); Trapa (Trapaceae,
aff. Onagraceae).
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