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Bastilla
amygdalis Moore
Dysgonia
amygdalis Moore,
[1885] 1884-1887: 551.
Parallelia amygdalis Moore;
Kobes, 1985: 93.
Diagnosis.
This and the next species are similar to the previous few but can be
distinguished by their having an angle in the distal edge of the costal
trapezoidal mark; this is more acute in arcuata Moore. The two are best distinguished from each other
by the forewing antemedial: straight in amygdalis,
with ground colour uniform across it; sinuous in arcuata with
the ground colour darker basal to it.
Geographical
range. Indian Subregion, Taiwan, Thailand (VK), Sumatra, Borneo.
Habitat
preference. All four records in recent surveys have been from forest at
250m or below in the Mulu area and in Brunei.
Biology.
Bell (MS) described the larva as ophiusine in shape, the prolegs of A3
cylindrical and small, those of A4 also slightly reduced. There are prominent
conical tubercles on A8, black with basal yellow spots (pink and yellow in one
example). The head is pale yellow, marbled with orange lines, and with a broad
black area centrally. The body is darkish grey with numerous thin, irregular
whitish lines longitudinally (though Gardner (1947) referred to dorsal lines of
dark speckling on a pale ground), with cross-lines giving a reticulate pattern.
On A1 there is a black ellipse laterally with associated red and white spots.
The spiracular region is suffused light yellow-green, and the ventral surface is
greenish black.
The pupa
is typical of the genus, with a powdery white bloom.
The host
plant is Phyllanthus (Euphorbiaceae).
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