::The Moths of Borneo::

SUBFAMILY PANTHEINAE

Belciana bicolor Wileman & West (Plate 1, Fig 22)

�� Belciana bicolor Wileman & West, 1929, Novit. zool., 35: 23.

Diagnosis. This species resembles biformis but is smaller, with the forewing a slightly less emerald green. The triangle medially on the costa is relatively larger. The medial fascia posterior to the triangle is finer, and is often accompanied by a fine, black, zigzag postmedial and sometimes a similar antemedial. The male genitalia differ from those of biformis and have relatively shorter, broader valves with massive coremata. The harpe is relatively longer and has a lateral tooth. The aedeagus vesica has denser and more ordered arrays of cornuti retricted to the basal zone; these cornuti are more even in size than in biformis.

Geographical range. Philippines (Mindanao), Borneo, Sumatra.

Habitat preference. Specimens have been recorded in recent surveys from Seria on the coast and from lowland forest at 300m in the Ulu Temburong. There is also a singleton from Samarinda in the lowlands of Kalimantan.

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