More than 60% of Australia’s known insects are unnamed and a mystery to science. Of an estimated 500,000 Australian species, roughly half are insects, but many aren’t categorized. More than 60% of Australia’s known insects are unnamed and a mystery to science. Of an estimated 500,000 Australian species, roughly half are insects, but many aren’t categorized. Plants & Animals Ecology Phys.org – latest science and technology news stories