The endangered Bay Area silverspot butterfly is found in San Mateo, Sonoma and Solano counties, California. The U.S. Fish and Wildlife Service announced the availability of a draft recovery plan for the Callippe silverspot butterfly (Speyeria callippe callippe). Photo: US Fish and Wildlife Service.
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The U.S. Fish and Wildlife Service announced the availability of a draft recovery plan for the Callippe silverspot butterfly (Speyeria callippe callippe), an endangered butterfly found in San Mateo, Sonoma, and Solano counties, California.
