In what country was the tiny frog Paedophryne amauensis discovered?

In what country was the tiny frog Paedophryne amauensis discovered? It was discovered in Papua New Guinea. The species is endemic to the country's eastern forests and is commonly called the New Guinea Amau frog.

Louisiana State University herpetologist Christopher Austin and doctoral student Eric Rittmeyer found it in August 2009 during a biodiversity expedition. The frog was discovered near Amau village in Central Province, which supplied its specific name, amauensis. Their formal description appeared in PLOS One in January 2012.

Finding it was difficult because the frog is camouflaged in leaf litter and produces a call resembling an insect's peep. The researchers triangulated the sound, scooped up handfuls of forest-floor debris, and spotted the tiny animals hopping inside plastic bags.

Adults average only about 7.7 millimetres from snout to rump. Unlike frogs with a free-swimming tadpole stage, this species hatches as miniature froglets, or hoppers. It can jump roughly 30 times its body length and lives in humid tropical leaf litter.