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They look like flies but they have streaks of gold/lightgreen
Hi Daisy. They are near Bactrocera occipitalis, but not 100% matched - http://www.spc.int/pacifly/Species_profi.... They also look close to Australia's Bactrocera frauenfeldi (Mango fruit fly), but I could not find a record of this species in the Philippines - http://www.padil.gov.au/pests-and-diseas.... I'm no specialist though :)
nice shot, they are fruit files. Flies are diverse and hard to identified, i can go only a family, please wait the specialists to go to further identification.