Please answer the following question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Hewitsonia -  Hewitsonia is a genus of butterfly in the family Lycaenidae. The members (species) of this genus are endemic to the Afrotropics.
Answer:
Animal