No you cannot rub the spots off. I was responding with a light hearted joke to Carols question. However, ladybird beetles usually emerge without dots and they develop soon afterwards.
Some ladybird beetles grow their spots later, as they get older; earn them, if you like. (see link) That is not so with this one, which may have been rubbed off:)
http://www.flickr.com/photos/craigpitchers/6169943614/in/gallery-66925960@N08-72157627726334723/
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