It is Anambulyx elwesi.
I think we can be sure of this ID, since there is only one species in the genus.
You might find this useful:
Jan Beck & Ian J. Kitching's excellent 'The Sphingidae of Southeast-Asia'
Thanks Mike. I've been collecting moths for about four years. And I've got about a hundred different kinds in just one place. But still I've not been able to identify all of them. I hope I can get help from all of you. Thank you so much.
Good luck. They're fascinating creatures.
I think it was around 1966 when my interest in moths began.
That's quite a lot longer than you; but I'm still hooked!
I stopped collecting them decades ago; now I just take photos and record data.