Over the last couple of weeks I have found about 4 of these beetles in my house. I have never seen them before.
I live in Northern Ireland, and we have had the kitchen doors open a lot lately, so there is a possibility that they have come in from outside.
I have spent a bit of time googling, and the closest I have got is a larder beetle, although the larder beetle seems to have a more defined strip on the back (the flash in the photo below seems to have made the markings a bit brighter than they really are).
Can you help me to identify it?
A staphylinid, maybe Creophilus maxillosus.
It feeds on carrion and decaying matter, so I can't really say why they're hanging about your house.
That's brilliant - I think you are right! Looking at pictures of the hairy rove beetle online and this it it!
I have also seen them doing the scorpion tail raising thing.
I can't quite work out why they are in my house - we have cats, and have also used manure in the garden, but quite some time ago.
Maybe an animal has died in the garden. These beetles don't appear immediately after an animal dies but from about a week after, so the animal wouldn't be in very fresh condition. (What a pleasant subject)