Speyeria

Speyeria, commonly known as greater fritillaries, is a genus of butterflies in the family Nymphalidae commonly found in North America, Europe, and Asia. Some authors used to consider this taxon a subgenus of Argynnis, but it has been reestablished as a separate genus in 2017.

Species
The genus has 3 species in Eurasia (these were formerly known as genus Mesoacidalia, now a synonym of Speyeria):
 * Speyeria aglaja (Linnaeus, 1758) – Dark green fritillary
 * Speyeria alexandra (Ménétriés, 1832)
 * Speyeria clara (Blanchard, [1844])

and 16 species in North America:
 * Speyeria diana (Cramer, [1777]) – Diana fritillary
 * Speyeria cybele (Fabricius, 1775) – great spangled fritillary
 * Speyeria aphrodite (Fabricius, 1787) – Aphrodite fritillary
 * Speyeria idalia (Drury, [1773]) – regal fritillary
 * Speyeria nokomis (Edwards, 1862) – Nokomis fritillary
 * Speyeria edwardsii (Reakirt, 1866) – Edward's fritillary
 * Speyeria coronis (Behr, 1864) – Coronis fritillary
 * Speyeria zerene (Boisduval, 1852) – zerene fritillary
 * Speyeria carolae (dos Passos & Grey, 1942) – Carole's fritillary
 * Speyeria callippe (Boisduval, 1852) – callippe fritillary
 * Speyeria egleis (Behr, 1863) – Egleis fritillary
 * Speyeria adiaste (Edwards, 1864) – unsilvered fritillary or Adiaste fritillary
 * Speyeria atlantis (Edwards, 1862) – Atlantis fritillary
 * Speyeria hesperis (Edwards, 1864) – northwestern fritillary
 * Speyeria hydaspe (Boisduval, 1869) – Hydaspe fritillary
 * Speyeria mormonia (Boisduval, 1869) – Mormon fritillary