Met Sunny in CCA during my lunch time outing. Sunny was shooting a "Sumatran Gem" when I ran into him. However the butt took off soon later showing its bright bluish upperside as it departed.
After parting company, I went on to explore the trail alone and ran into a group of three "Sumatran Gem" several hundred metres away. With the butt in the viewfinder, I found its coloration a shade darker (see pic 1) than the previous specimen I saw in previous outings. The butts exhibited this habit of rapid wing opening/closing routine when they landed on a new perch (see pic 2). Checking C&P4, the uppersides actually matche those of Poritia philota philota rather than Poritia sumatrae sumatrae. Looks like another +1 for me.
Sunny, you should check whether the Sumatran Gem you shot is actually this other species.
Poritia philota philota?
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