Mylitta Crescent

Phyciodes mylitta

The Mylitta Crescent or Mylitta Crescentspot is a butterfly of the Nymphalidae family. It is found in the western North America. The wingspan is 27–32 mm. The butterfly flies from June until late July in Canada. The larvae feed on "Cirsium" and "Carduus" species.
Mylitta Crescent I think I've got this one. I narrowed it down to either pale crescent or mylitta crescent through wing pattern and range - the deciding factor was the forewing (in another shot) which has no dark spot, which it would if it were a pale crescent.  Geotagged,Mylitta Crescent,Phyciodes mylitta,Spring,United States

Naming

Listed alphabetically.
⤷ "P. m. arizonensis" Bauer, 1975
⤷ "P. m. arida"
⤷ "P. m. mexicana" Hall, 1928
⤷ "P. m. mylitta"
⤷ "P. m. thebais" Godman & Salvin, 1878*"Phyciodes pallida" – Pale Crescent

References:

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Taxonomy
KingdomAnimalia
DivisionArthropoda
ClassInsecta
OrderLepidoptera
FamilyNymphalidae
GenusPhyciodes
SpeciesP. mylitta