Lasz week I came up the stairs from the cellar and look what I found!
I have no clue what species this is, apart from “fucking big”, as it is about two inches across. I took some pics and then carefully relocated it to where it was less likely to lead to demands of “immediate violent death” from other people.
In case you’re wondering the strange surface, the previous owners glued carpet scraps to the stairs. If there’s a hell for bad DIY, the dude is going to spend eternity scraping glue off things. Pics below the fold.