The California Tortoise Shell Butterfly

California Tortoise Shell butterfly, Nymphalis californica

The Larva of the California Tortoise shell feeds on Ceanothus plants
Nectar sources used by the California Tortoise shell

The California Tortoise shell likes Manzanita flowers for nectar. There are even more Manzanitas in California then Ceanothuses. The can be any where from six inches tall, Carmel Sur Manzanita to twenty foot, the Big berry Manzanita. They are also evergreen. The flowers are pink or white.

The adult California Tortoise shell Butterfly gets nectar from Manzanita flowers


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Larval food of the California Tortoise shell

The Larva of the California Tortoise Shell feeds on Ceanothus thyrsyflorus repensThe Larva of the California Tortoise Shell Butterfly feeds on Ceanothus plants. There are over 50 species of Ceanothus found in California. They range in size from two foot anywhere to twenty foot and have flowers anywhere from white, to blue, to lavender. One of this plants common names is wild lilac. It is also evergreen making it an excellent garden plant!

Picture of a California tortoise shell Butterfly siping nectar on a manzanita









The drab coloration and bark like pattern of the California Tortoise shell butterfly when it is closed helps it to hide from predetors

Ceanothus Cuneatus is eaten by the Larva of the California Tortoise Shell Butterfly.







The California Tortoise Shell butterfly has large fluctuations in population. Some years there is a huge burst in population ans in some there are very few to be seen. In years where the populations are greater there is more migration and these butterflies can be found in the mountains and northern portions of California.


The California Tortoise Shell Butterfly
The California Tortoise Shell Butterfly