The California tortoiseshell is a butterfly of the Nymphalidae family. The California tortoiseshell is known for having population explosions which cause the butterflies to migrate to new areas. The cause of these population explosions is unknown. Their larvae eat various species of Ceanothus.
Similar species: Moths And Butterflies
By Ms. Blackcat
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Uploaded Sep 26, 2025. Captured in 492 Safari Dr, San Jose, CA 95123, USA.
