I found it in my cellar where a pile of wood logs is stored and brought it to the garden to photograph and left it there, it will find plenty of old wood logs there too..
I am confident that it is Lithobius forficatus even though Lithobius variegatus looks identical, but that last one has stripes on the legs which mine doesn't has.
http://images.google.be/imgres?imgurl=http://content.answers.com/main/content/wp/en-commons/thumb/b/b7/280px-Lithobius_forficatus.jpg&imgrefurl=http://www.answers.com/topic/lithobius-forficatus&h=186&w=280&sz=41&hl=nl&start=10&tbnid=3uk4d-m_3ffT1M:&tbnh=76&tbnw=114&prev=/images%3Fq%3Dlithobius%2Bvariegatus%26gbv%3D2%26hl%3Dnl%26sa%3DG
