Wikipedia
Giganteopalpus
Giganteopalpus is a genus of moths in the Sphingidae family, containing only one species Giganteopalpus mirabilis, which is known from Sundaland.
It is very similar to Eurypteryx species, but differs in the enlarged labial palps, the second segment of which is broader than long, and the costal margin of the hindwing having a prominent antemedian lobe.
The larvae possibly feed on Araceae species. They are light green and marked only with a white subdorsal streak over the thoracic segments. The horn is very long, straight, colourless at the base and green with black granules distally.