Apatura Iris is a species of butterfly commonly known as the purple emperor or more specifically, the imperial butterfly. Some synonyms for Apatura Iris include Nymphalis Iris, Apatura Nemon, and Urania Iris. While it may seem confusing to have multiple names for the same species, these synonyms can be helpful for identifying the butterfly in different regions, or for understanding various taxonomical classifications. Regardless of what name you use, the purple emperor is a strikingly beautiful butterfly with its large size, shimmering wings, and regal appearance. Found throughout Europe and Asia, it is regarded as one of the most majestic species of butterfly in the world.