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This Larvae was found on Bark, in a place with many oaks and beech tree near Amsterdam.
It's about 25-30 mm.

Is it Pyrochroa Serraticornis?, or maiby P. Coccinea?
I found some images of P. Coccinea where the larvae got a black(dark) backstripe.
The larvae I found didn't have this dark part. Or does this stripe got to do with it's state of growing?
Or is it a characteristic sign?

greeting, Robert