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Photo#342262
Small, dark and shiny - Chrysolina bankii

Small, dark and shiny - Chrysolina bankii
San Francisco, San Francisco County, California, USA
October 10, 2009
Size: <1/2 inch
Seen on wild radish, noonish

Images of this individual: tag all
Small, dark and shiny - Chrysolina bankii Small, dark and shiny - Chrysolina bankii Small, dark and shiny - Chrysolina bankii

Chrysolina banksi -- E.G. Riley det.
an Old World species recently established in the SF Bay area.

 
Chrysolina banksi
Thanks so much for your diligence.

Moved
Moved from Chrysolina.

extorris vs schaefferi?
Cali beetle dbase lists 5 spp., of which i know, and can rule out, three [all non-native]

Moved from ID Request.

 
I agree, the three non-native spp.
look very different.
I'm not really familiar with these, but C. schaefferi has blue elytra and dark legs, so probably extorris. I'll put this on my list of things to look at.

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