Claim: Oreta pingorum is a member of the extensa Walker found on Borneo, Sulawesi, Buru and New Guinea.
Evidence: This species is a member of the extensa Walker (N.E. Himalaya, W. & S. China, Sumatra, Java, Sulawesi) group of Watson (1967) where the facies is similar to that of yellow and red forms of species in the insignis Butler group of which three species are described immediately following. It is found on Borneo, Sulawesi, Buru and on New Guinea.