Altica lythri (flea beetle) - closeup, Heeswijk-Dinther, Netherlands
Tentative species ID, but reasonably sure. Reference:
This is the second flea beetle new to me from the same session:
From this photo, you can clearly see the well developed thighs on the hind legs, allowing them to leap away. Size reference:
''Altica lythri'' is a species of flea beetle from the leaf beetle family, that is common in Asia, Europe, and North Africa, including Israel. The beetles size is 5 mm, and their colour is blue with black and green. They present an ovipositor during oviposition.