This one?
No, the one on my plant has no black markings, the photo is pretty clear as to colour and markings, which are a pale creamy beige. It still hasn’t moved, so I’m leaving it alone, it’s not harming the plant at the moment; maybe it’s hibernating.
Stet that, I’ve just had a closer look, and there are lots of droppings all over the soil, and leaves are starting to turn brown in places. It’s a fairly young plant, grown from a small cutting taken from a plant that was my partner’s, so the creature can go outside and take its chances in the wild, where it came from.