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Chrysomelidae? Cucumber beetle larvae?

Chrysomelidae? Cucumber beetle larvae?
Santa Cruz County, California, USA
October 27, 2012
Found this larvae on spearmint, frass on leaves, darkened head

Images of this individual: tag all
Chrysomelidae? Cucumber beetle larvae? Chrysolina Bankii Larva/Grub

Awaiting Rearing
Moved from ID Request.

New photos
I am rearing these little guys out to adults, they have increased dramatically in size in just a couple of days. I added a couple of photo, unfortunately they are not any sharper, but are a little closer, giving just a bit more detail.

Rearing larva
Change the date with each "progress report," otherwise it's like all your yearbooks having the same date on them :)

has to be Chrysomelidae
need much larger/sharper pics to tell anything beyond that

Chrysolina bankii larvae on mint
Identified as C. bankii

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