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Nyctemera
baulus Boisduval
Leptosoma baulus Boisduval, 1832, Fauna ent. Pacifique,
Voyage Astrolabe p. 200.
Nyctemera baulus Boisduval; Roepke, 1949: 50, 1957: 150, 168;
Holloway, 1976: 5; Barlow, 1982:
75.
Diagnosis. This species is distinguished from others with a transversely banded,
basally pale grey abdomen and a dentate inner border to the hindwing marginal
band, by the fine whitish delineation of all the veins at the base of the
forewing.
Taxonomic notes. Several races are recognised in the range of the species, but the
Bornean population belongs to mundipicta Walker (Roepke, 1957).
Geographical range. Sundaland to N. Australia and Samoa.
Habitat preference. This is a widespread sometimes common species of
lowland (up to 1200m) secondary, disturbed and agricultural ecosystems.
Biology. Robinson (1975) described the larva in Fiji. The head is pale orange
brown. The body is yellowish cream with broad transverse bands of brownish black
on each segment. The mesothorax has a pair of hair-pencils; each segment has
verrucae with black and pale hairs. The host-plants noted were Brassica (Cruciferae),
Emilia and Crassocephalum (Compositae). The species was also
recorded from Crassocephalum by McFarland (1979).
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