Help with butterfly ID

[Samuel T]

Dr Seow, appreciate your help to ID this butterfly. Thanks.

Regards
Samuel

[Psyche]

Male Borbo cinnara.
Example like this can be difficult.
Noted features.
HW without a central cellspot.
Visible spots are spot 2, 3, 4 (white) & 6 (hyaline) hard to see.

Borbo cinnara can be recognised by its white face & upper chest.
Thoracic hair are more greenish.
Typically with three spots, spots 2, 3, & 6.
http://3.bp.blogspot.com/-f9av3xsB2G..._unds_01_c.jpg
http://2.bp.blogspot.com/-KaVjdL_FAM...lt_Khew_01.jpg
http://farm9.static.flickr.com/8649/...193282d096.jpg
http://www.ifoundbutterflies.org/med...Saji_ad957.jpg

Pelopidas mathias. With HW cellspot; face & upper chest less white.
http://2.bp.blogspot.com/_0EK80AsaR7...nded+Swift.jpg

Polytremis lubricans. HW without a cellspot; face & chest ochreous as the wings.
http://1.bp.blogspot.com/-0cUzxS0FpT...us%2BSwift.jpg


TL Seow: Cheers.
PS. Parnara bada which is also found in Singapore can be confusingly similar in a worn state.
The antennae are short & stubby; the HW spots varies in number; a cellspot may be present at the lower end of the cell (different from that in Pelopidas) ;subapical spots often two.
http://3.bp.blogspot.com/-FX2pIhZeZ4...us%2BSwift.jpg
https://static.inaturalist.org/photo...jpg?1443780933
http://2.bp.blogspot.com/-r10tmE1ODK...rnara+bada.jpg