Maechidius mailu is a species of beetle of the family Scarabaeidae.BioLib It is found in Papua New Guinea.
Description Adults reach a length of about 8.20 mm. The dorsum and venter are uniformly brown, while the appendages and labroclypeus are castaneous.
Etymology The species is named after the Mailu, the local tribe and language of Amazon Bay, Papua New Guinea.
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