This pretty little beetle is only about 6mm long, with an iridescent body which looks as though it’s been carefully embossed. I found this one on the rosemary bush in my garden, but they also like to eat the leaves and flowers of lavender, sage and thyme. I tolerate this beetle chewing the leaves of the rosemary, but if it becomes a problem then then environmentally friendly way to get rid of them is to pick them off and squash them!