Zerene Fritillary (Speyeria zerene)

S. z. bremnerii found in the Puget Trough. Photo by Rod Gilbert

S. z. picta found in the Washington and northern Oregon Cascades. I took this photo on Mt. Adams.

Comments. Highly variable species with regional subspecies.

Similar species. Forewing medial black band wider than Coronis or Hydaspe. Postmedian spots usually more elongated than Hydaspe.