This pretty little molten gold beetle has been doing the rounds of the Internet lately, because not only does it look like nothing else on Earth, but it can also completely change colours. And it’s just as pretty when it does.This is golden tortoise beetle (Charidotella sexpunctata, previously known as Metriona bicolor), a tiny, metallic North American insect that belongs to the leaf beetle family, Chrysomelidae, which includes flea beetles, asparagus beetles and longhorn beetles. Nicknamed ‘goldenbugs’, golden tortoise beetles grow to around 5.0 to 7.0 mm in length and favour foods such as sweet potato and morning glory.