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Risoba
calaina
Zerny
Risoba calaina Zerny, 1916, Annln. naturh. Mus. Wien, 30: 190.
Risoba
obliqua
Prout, 1921, Ann. Mag. nat. Hist. (9), 8: 9.
Risoba obliqua f.
philippinensis
Prout, 1921, Ann. Mag. nat. Hist.(9), 8: 11.
Risoba amabilis
Roepke, 1938, Bull. Mus.r. Hist. nat. Belg., 14: 30,
syn. n.
Risoba
calaina 
Risoba
calaina  |
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Diagnosis. There is slight sexual dimorphism, females having a bluer green
ground to the forewing and narrower, more clearly defined black markings in the
marginal area. The strongly variegated facies with a large basal black block on
the dorsum and a black bar bisecting the apex are distinctive, apart from the
next species as discussed in its description. In the male genitalia a very small
saccular process is present and the costal ornamentation consists of an unusual,
inwardly directed, thumb-like process.
Geographical range. Sundaland; Philippines (ssp. philippinensis);
Sulawesi (ssp. amabilis).
Habitat preference. Martini & Thöny (1993) recorded a singleton from 950m on
G. Trus Madi in Sabah, and a few other specimens have been taken in the montane
zone of Brunei, but the species is generally much more frequent in lowland
forest.
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