45, Choaspes benjaminii.

This & C. hemixanthus furcatus are confusingly similar & much mixed up on the web.

C. benjaminii ;Upperside bluer & basal halves greenish; Underside HW black bar(spot) in space 1b straight & parallel to inner margin.
http://yutaka.it-n.jp/hes/90310010.html
http://www.ifoundbutterflies.org/med...kare_am792.jpg
http://www.hkastroforum.net/files/_mg_6260_103.jpg

C. hemixanthus furcatus is considered a full species as C. furcatus by many.( ie separated from C. hemixanthus from the Papuan region.
Upperside basal 2/3 pearly green in both sexes. HW underside bar/spot in space 1b curved upwards (ie 'hooked').
http://old.hkls.org/images/Choaspes_hemixanthus_f.jpg
http://www.ifoundbutterflies.org/med...1a_7/av115.jpg
http://www.flutters.org/home/photoga...10-awlking.jpg

49. Telicota bambusae. HW band veins not dark dusted.

TL Seow: Cheers.