References and External Links
- Oregon Silverspot butterfly, Fish and Wildlife Service
- The Washington State department of fish and wildlife species of concern
- Silverspot Butterfly Fact Sheet, Woodland Park Zoo, Seattle, WA
- Silverspot Butterfly, Fish and Wildlife Service
- Speyeria Zerene, University of Alberta, Entomology Collection
- Butterflies and moths of North America species detail page
Read more about this topic: Speyeria Zerene
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