Boarmia alienaria Walker, 1860, List Specimens lepid. Insects
Colln Br. Mus. 21: 370.
Boarmia gelidaria Walker, 1863, Ibid., 26: 1537.
Chogada rasanaria Swinhoe, 1915, Ann. Mag. nat. Hist. (8),
Cleora alienaria fumipennis Prout,
1929, Novit. zool., 35: 70.
Diagnosis. This and the next two species are somewhat similar in general
appearance. C. concentraria Snellen is distinguished by the less
crenulated postmedials, that of the hindwing being distinctively angled. The
discal spot of the forewing is more clearly defined in alienaria than in
C. pendleburyi Prout, and the forewing postmedial of the latter is
generally less angled. C. pendleburyi has a more variegated appearance as
a rule. The male genitalia are diagnostic, and dissection is recommended where
identity is unclear on external features.
Geographical range. Indian Subregion to Sundaland and Lesser Sundas as
far east as Timor. On Christmas I. (Indian Ocean): ssp. fumipennis.
Habitat preference. There is only a single Bornean specimen in the BMNH
collections, a male from Tenom in the lowlands of Sabah. However, the species is
being recorded in some abundance from plantations of Acacia mangium and Paraserianthes
falcataria (Leguminosae) in the lowlands of Sabah (Chey, Speight &
Biology. The larva has been reared from Paraserianthes by Chey Vun Khen
and staff at the Forest Research Centre, Sepilok, Sabah. It is leaf-green,
robust, with fine linear marbling. On A2 there is a pair of brown tubercles
dorsolaterally, with a narrow, lenticular, transverse white bar anterior to
them. The white bar is divided centrally by a black triangle. Prout (1929b)
noted a host-plant record from 'Cinnamonea', presumably Cinnamomum (Lauraceae),
and D. Stüning (in litt.) has reared the species from Sambucus (Caprifoliaceae)
in N. Thailand.
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