Sphinx imaon Cramer, 1780, Uitl. Kapellen, 3: 94.
Syntomis godarti Boisduval, 1829, Monogr. Zyg. p. 115,
Syntomis fusiformis Walker,
1856, List Specimens lepid. Insects Colln. Br. Mus., 7:1595.
Syntomis approximata Walker,
1864, Ibid., 31: 79.
Syntomis libera Walker, 1864, Ibid., 31: 78, syn. n.
Syntomis fytchei Moore, 1871, Proc. zool. Soc. Lond., 1871:
246, syn. n.
Syntomis cupreipennis Butler,
1876, J. Linn. Soc. Lond., 1871: 246, syn. n.
Syntomis artina Butler, 1876, Ibid., 12: 347.
Syntomis sargania Butler, 1879, Trans. ent. Soc. Lond., 1879:
Syntomis mota Swinhoe, 1891, Trans. ent. Soc. Lond., 1891:
Ceryx imaon Cramer; Seitz, 1912-1913: 65.
Diagnosis. See the generic diagnosis. The species is more robust than other Bornean
taxa with a similar disposition of transparent areas on the wings, the hindwing
with the black border broadening towards the apex. The abdomen is ringed yellow
at the base and at two-thirds only.
Taxonomic notes. No significant differences could be found between the genitalia of
specimens with broad hindwing borders (imaon) and those with narrow ones (godarti)
so the two taxa are brought into synonymy.
Geographical range. Indian Subregion and S. China to Borneo and Sumatra.
Habitat preference. Both Bornean specimens seen are from lowland Brunei,
taken in dipterocarp forest at Ulu Temburong and in coastal and secondary
vegetation at Seria.
Biology. The larva has been noted to feed on Anacardium (Anacardiaceae)
and Citrus (Rutaceae) in India (CIE records).
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