@piecritic Ooh, so it's a "cross spider"! I had an entirely different image in my head for that one, more sinister looking. But apparently they differ quite a lot in appearance. Most here look more sinister though: http://www.entomologi.se/cgi-bin/enter_sp.cgi?iljwhat=2001

But now that I look at my picture again, I do see the pretty distinctive "cross" on its back. Thanks for looking it up! I'm short on bandwidth where I am so I appreciate it (and don't have any good literature on thr subject either, which I now realise I should get).