A link worth following
Macrocilix maia is a Drepanid moth found from India to Japan, and a number of islands in the Indonesian archipelago. As a caterpillar, it feeds on Chinese Cork Oak. But it's real claim to fame is it's mimicry of a splash of bird dropping. Complete with smell, and attendant flies. Paul's photo includes one of the actual flies it's mimicking - it's a astonishingly good job.