Unsilvered Fritillary   S. a. adiaste

Atossa Fritillary   S. a. atossa (extinct)

Collected specimens of S. adiaste show a north-south cline from smaller, darker reddish-orange S. a. adiaste in the north to larger, paler S. a. atossa (now extinct) in the south: S. a. clemencei tends to be intermediate.  Females average larger and paler than males.

Clemence’s Fritillary   S. a. clemencei