Parnassius phoebus, known as the Phoebus Apollo or Small Apollo, is a butterfly species of the family of Swallowtail butterflies (Papilionidae) found in Eurasia and North America.
* J. H. Shepard, T. R. Manley: A species revision of the Parnassius phoebus complex in North America (Lepidoptera: Papilionidae).