Mystery Beetle

I took a short evening walk over to the nearby community garden and was rewarded with this very distinctive fingernail-sized beetle. Not distinctive enough, however, to readily identify on the web. I assumed a bright green shield-like body, a little tiny pointed head and red striped antenna were really good clues, but alas, not so. At least not so far...

And thank you, picturepoems, for identifying this as a stink bug. Looks like it to me! I love all the factoids available through blipfoto!