It is possible that the Curetis depicted in this link below is C. tagalica.
This is because the upperside matched that of C. tagalica labuana, the ssp in Borneo.
In C. regula the border on the HW & the FW tornus is almost a thread, & there is no subspecies for this species.(see pic & key C&P4)
http://upload.wikimedia.org/wikipedi...laMUpUnAC1.jpg

This makes it more likely that the post 12 Sunbeam is Curetis tagalica.
The indentation of the band in HW space 6 can be very shallow as shown in the example from Muane Chong, Ranong, male.
http://yutaka.it-n.jp/lyc3/84110010.html

TL Seow