Abstract: Field observations are provided on the fly-mimicking jewel beetle Coraebus cupricollis Deyrolle (Coleoptera: Buprestidae) from Papua New Guinea. The adult beetles have a colour pattern typical of the Müllerian mimicry of certain flies as recorded in other beetles from Middle America. Predators appeal lo be spiders and assassin bugs (Hemiptera: Reduviidae). Download PDF