Parnassius phoebus, known as the Phoebus Apollo or small Apollo, is a butterfly species of the swallowtail butterfly family, Papilionidae, found in the Palearctic and North America. P. phoebus is found in the Alps, Urals, Siberia, Kazakhstan, Mongolia, China, Alaska and Canada south through the United States to Utah and New Mexico. Description Male: the costal spots of forewing usually without red, the anterior one sometimes with white pupil; submarginal band faint and abbreviated or interrupted; no spot at hind margin; hindwing with red ocelli which are usually small, and sometimes with a submarginal row of feebly marked black spots; the veins often marked with well-defined elongate black punctures. Female: with better defined and more extended markings; vitreous margin of forewing separated from the submarginal band by large white uniform spots; the second costal spots often pupilled red, connected with one another by black scaling, on disc sometimes blackish shadows; on hindwing a greyish vitreous marginal band, distinct submarginal half-moons, which are contiguous, forming a band, two larger red ocelli, the posterior one occasionally with white pupil; anal spots sometimes intensified and one of them filled in with red. Habitat Mountains at 1,600 to 2,800 meters, in particular between 1,800 and 2,200 meters above sea level, in humid damp and wet places such as edges of mountain streams and near springs and fresh seepages and in valleys (Schneetälchen) according to the preferences of its caterpillar food plant. Larval foods Saxifraga species Sedum species Sempervivum montanum Subspecies P. phoebus has the following subspecies: Parnassius phoebus alpestris Verity, 1911 Parnassius phoebus var. anna Stichel, 1907 Parnassius phoebus aktashicus Parnassius phoebus alaskensis Eisner, 1956 Parnassius phoebus altaica Ménétriés, 1859 Parnassius phoebus amalthea Bryk & Eisner, 1935 Parnassius phoebus ampliusmaculata Bryk, 1929 Parnassius phoebus apricatus Stichel, 1906 Parnassius phoebus var. aristion Fruhstorfer, 1923 Parnassius phoebus var. astriotes Fruhstorfer, 1923 Parnassius phoebus badmaevi Martynenko & Gluschenko, 2001 Parnassius phoebus bajangolus Yakovlev, 2006 Parnassius phoebus basimaculata Bryk & Eisner, 1935 Parnassius phoebus behrii Edwards, 1870 Parnassius phoebus biexcelsior Bryk & Eisner, 1935 Parnassius phoebus var. blachieri Fruhstorfer, 1921 Parnassius phoebus bulawskii Parnassius phoebus catullius Fruhstorfer, 1923 Parnassius phoebus cardinalis Oberthür, 1891 Parnassius phoebus var. casta Stichel, 1907 Parnassius phoebus cerenus Martin, 1922 Parnassius phoebus chingizid Yakovlev, 2006 Parnassius phoebus var. confederationis Fruhstorfer, 1921 Parnassius phoebus corybas Fischer De Waldheim, 1836 Parnassius phoebus costalinigroocellata Bryk & Eisner, 1935 Parnassius phoebus crocedominensis Nardelli & Sala, 1986 Parnassius phoebus