I googled this one up on this site (http://www.theroots.claranet.de/Flora__Fauna/balkon/balkon.htm), and in German it is called "Gemeine Stinkwanze", which is not a very favourable name! "Palomena prasina" is the Latin name, so the site says, now what would that be in English?
its funny that the germans call them that. they are also called stink bugs. if you pick them up they give off a funny smell! used to catch them when i was a nipper. you get all different colours. i have found black and red ones in france!
Those are stink bugs? Feck! We get them all the time round here. Some green, some brown (I won't comment there...). We even had them all over the house after bringing in a plant. I've always let the be and I've yet to smell them. I won't poke them to so I can get a whiff now, either.