Favonius is a Palearctic genus of butterflies in the family Lycaenidae.
The purple hairstreak (Favonius quercus) is a butterfly in the family Lycaenidae distributed throughout much of Europe, North Africa, Anatolia, Caucasia, and Transcaucasia.The larva feeds on Quercus robur, Quercus petraea, Quercus cerris and Quercus...