Leaf beetle - Cryptocephalus
Size - about 4 mm
It seems to be a Cryptocephalus, maybe sericeus or hypochaeridis, I'm not sure.
Taken with Sigma 150 Macro and Raynox DCR-150 at around 1.9X. Natural light. This is a stack of 26 shots taken in a morning a few days ago. The stacking is not perfect of course, but it's a good start for me.