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Arctornis obtusa Walker
comb. n.
Cassidia
obtusa Walker,
1862, J. Proc. Linn. Soc., 6:130.
Aroa
kinabaluensis Strand,
1910, Dt. ent. Z. Iris, 24: 206.
Cassidia
kinabaluensis Strand;
Holloway, 1976: 50.
Diagnosis. This and Arctornis meridionalis
Holloway comb. n. have similar facies: the angled hindwings and
the subapical translucent patches of the pale-brown suffused forewings
distinguish them from other Arctornis. The species differ in size and
male genitalia: obtusa is larger, with the valve harpe longer and with a
diagnostic central bulge.
Taxonomic note. These two species belong to the Cassidia group, reviewed by
Holloway (1982b). There is a moderate areole in the forewing venation.
Geographical range. Borneo, Sulawesi.
Habitat preference. The species occurs frequently in a wide range of
lowland forest types, and much more rarely at altitude, the highest record being
from 1930m on G. Kinabalu.
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