Two new flea beetles

I managed a brief walk this afternoon with my younger son at a site in south-east Cambridge. We didn't get long before the much needed rain began but I did managed to do a little bit of tapping vegetation over my white umbrella to see what beetles I could find.

I targeted clumps of plant that I couldn't for the life of me identify. When I was about 10 or 11 I was really into plants and spent lots of time IDing and drawing them. I used to go on trips with the local wildlife trust to see various interesting habitats and their plant assemblages. Unfortunately birds and moths quickly took over and my plant knowledge gradually faded and I've been trying (mainly unsuccessfully) to resurrect it over recent years. I was pretty sure it was in the borage family but didn't get beyond that.