Its a fantastic site from Lech Borowiec, and all the species came from POLAND!!
Of course there are species from Dermestidae looking similar, thats why i have asked about location. You can try to ask Andreas Hermann, specialist in Dermestidae or visit his excellent website.
Could it be the European oak wood beetle? Scolytus multistriatus? Or bark beetle. otherwise you need detailed information about the locality. Check Victor's resource above, could be useful. Also, this site has most: http://www.forestryimages.org/