What distinguishes the blackberry from its raspberry relatives is whether or not the torus (receptacle or stem) 'picks-with' (i.e. stays with) the fruit. When picking a blackberry fruit, the torus does stay with the fruit. With a raspberry, the torus remains on the plant, leaving a hollow core in the raspberry fruit.
The beautiful metallic green beetle is a Chrysanthia spp., which is a genus of beetles belonging to the family Oedemeridae subfamily Nacerdinae. It could well be a C. viridissima. The common name of these is 'green false blister beetles'.
This post is part of the Floral Friday Fotos meme,
and also part of the Friday Greens meme.