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Ruttellerona
lithina Warren
Paralcis lithina Warren, 1903, Novit. zool., 10: 398.
Ectropis (Ruttelerona) indiligens Prout,
1925, Novit. zool. 32: 60, syn. n.
Ectropis (Ruttelerona) lithina kinabalensis Prout,
Novit. zool. 32: 60.
Ruttellerona lithina Warren;
Holloway, 1976: 80.
Ruttellerona
lithina 
Ruttellerona
lithina |
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Diagnosis. Male lithina are pale brown with more continuous pale
submarginals to the forewing: there is a shallowly arcuate black mark at the
forewing costa just basal to the postmedial. The female resembles that of pseudocessaria
and pulverulenta and is best distinguished by the genitalia: a signum
is present, and the ductus bursae is diagnostically sclerotised.
Taxonomic notes. R. indiligens was distinguished by Prout from lithina purely
on absence of the abdominal comb of spines (sternite 3). Dissection of the type
shows these to have been rubbed or broken off as the bases are present, hence indiligens
must be considered conspecific with lithina. R. obsequens Prout (S.
Moluccas) has male genitalia very similar to those of lithina including a
forked juxta, so it is probably the sister species.
Geographical range. Borneo, Sulawesi, S. Moluccas, New Guinea.
Habitat preference. R. lithina is found in the upper montane zone of G. Kinabalu,
from 1200m to 2600m, being frequent in the middle part of that range. A single
specimen has been taken at 1670m on Bukit Pagon, Brunei.
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