They jump like fleas and so I just assumed - never seen a flea beetle before! Their primary food source is Oil seed rape and my house backs onto a field of OSR which has just been harvested... not good. How many more will be coming my way?? And I don't think I can buy anything to kill them as it is agricultural grade stuff that is used. Bummer. I guess I will have to stick to courgettes and tomatoes which they don't seem to find so tasty!