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Proneca
fola
Swinhoe
Proneca fola Swinhoe, 1890, Trans. ent. Soc. London, 1890: 194.
Diagnosis.
This is a rather ligneous brown species
resembling
Sarbena
species, but is distinguished by the more prominent and oblique darker brown
band on the forewing that has a cream-coloured subcostal line just anterior to
it. The hindwing is white in males and greyr in females.
Taxonomic note.
The harpe of the male genitalia is short, broad,
in a male from Singapore and long, slender, straight, in a male from Sri Lanka;
that of a male from S. Vietnam with the Budapest group is long but robust and
regularly downcurved. Male material is insufficient to explore this variation
further.
Geographical range.
Burma, Sri Lanka, India, Vietnam, Singapore,
Borneo, Java.
Habitat preference.
The species is known in Borneo from two specimens
from Bidi in the lowlands of Sarawak.
Biology.
Sevastopulo (1938) reared the larva in India
(Calcutta). The head is yellowish and the body has a thick pelt of dark hair on
verrucae that is obscured by pink fluff up to the final instar. Head capsules
are stacked and can number five or six in a mature larva.
Pupation is in a cocoon spun along a twig, incorporating bark fragments and hair
as in
Sarbena.
The pupa is reddish brown, rather elongate.
The host plant recorded was
Quisqualis (Combretaceae), but there are records also for Terminalia
in the same family (Robinson et al., 2001) and for Melastoma (Melastomataceae)
and Eugenia (Myrtaceae) in Java (Piepers & Snellen, 1904).
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