Phystis is a monotypic genus of butterflies from southern United States in the family Nymphalidae. It contains the species Phystis simois."Phystis Higgins, 1981" at Markku Savela's Lepidoptera and Some Other Life Forms
Subspecies P. s. chinchipensis (Hayward, 1964) (Peru) P. s. pratti (Hall, 1935) (Peru) P. s. simois (Hewitson, 1864) (Brazil) P. s. variegata (Röber, 1913) (Brazil, Argentina, Uruguay, Bolivia, Peru)
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