Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Lesser Purple Emperor, or Apatura ilia, is a species of butterfly native to most of Europe and Asia. It is named for its similarity to the Purple Emperor butterfly. The wingspan is 55-60 mm. The moth flies from June to July depending on the location. In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are often used, such as similarity of DNA, morphology or ecological niche. Presence of specific locally adapted traits may further subdivide species into subspecies.