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Bamra
albicola Walker
Felinia
albicola Walker,
1858, List
Specimens lepid. Insects Colln Br. Mus., 14: 1515.
Agriopis
discalis Moore,
1867, Proc.
Zool. Soc. Lond., 1867: 57.
Bamra
diplostigma Hampson, 1893, Illust. typical Specimens lepid.
Heterocera Colln Br. Mus., 9: 24, 109.
Polydesma
discalis melli Draudt, 1950, Mitt. münch. ent. Ges.,
40: 162.
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Bamra
albicola  |
Bamra
albicola |
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Diagnosis.
Through most of its range there is marked sexual dimorphism of facies (in ssp. melli
both
sexes converge on the female form). The forewings are irregularly fasciated pale
grey in the female and almost white in the male, with a distinctive darker zone
defined postmedially on the costa, pale-centred in the female but more uniformly
dark in the male. The hindwings are also darker in the female.
Taxonomic
note. There is some slight variation in the male genitalia through the
range. The Bornean specimen dissected has a rather long uncus, with narrower
lateral arms, and a longer and broader juxta than in males from Sri Lanka and
Taiwan. The Sri Lankan male (slide 19115) had a more typical inverted ‘V’
type of juxta.
Geographical
range. Sri Lanka,
India, Thailand (VK), Vietnam (Zilli, 1999), Peninsular Malaysia, Sumatra,
Borneo; China, Taiwan (ssp. melli);
Sulawesi.
Habitat
preference. Recent surveys have yielded only two specimens from lowland
forest at 30-60m near Labi and 300m in the Ulu Temburong of Brunei, and one from
1618m on Bukit Retak. Martini & Thöny (1993) recorded the species from 950m
on G. Trus Madi in Sabah. There are also two specimens from Samarinda in the
lowlands of Kalimantan.
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