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Eumolpinea gen sp.
Family Chrysomelidae (1) metallic green pronotum and elytra
in a garden of MSC Institute of Technology located in San Gabriel, San Pablo City, Philippines - a semi-agricultural area
Similar species found on the web as Colasposoma sp., e.g.:
http://www.natureloveyou.sg/Minibeast-Be...
they are known to feed on sweetpotato.
My knowledge in this subfamily is very limited, I can't tell if yours is the same genus.