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Biston
pustulata Warren
Buzura pustulata Warren, 1896, Novit. zool., 3: 401.
Diagnosis. See the previous species.
Taxonomic notes. Bornean material may represent a distinct race as the forewing fasciae
are weaker, more broken. However, the male genitalia are identical with those of
typical pustulata from Peninsular Malaysia.
Geographical range. Sundaland.
Habitat preference. Generally distributed in lowland forest, the species
is rarer than insularis. It has been taken as high as 1618m on Bukit
Retak, Brunei.
Biology. The species has been reared by Chey Vun Khen and staff at the Forest
Research Centre, Sepilok. The larva is robust, coarsely mottled pale green (more
bluish grey-green in earlier instars). The spiracles are orange. There are
irregular, small, black markings across the dorsum on A8. The head is rugose,
dull rufous orange, marked centrally with a darker brown, inverted ‘V’. The
host-plant was Acacia mangium, and the species has been reared also from Gliricidia
(both Leguminosae) in Sabah.
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