Brood parasites in general hijack parental care. They drop off their kids in a strange nursery and fool the stranger into thinking it is their kid. This occurs in birds, fish and insects.
Here is an example from the BBC’s “Natural World” with a special appearance by behavioral ecologist, Nick Davies.
The video below comes from the National Geographic channel.
Here is a link to find out more about cuckoo bees http://www.cirrusimage.com/bees_cuckoo_Nomada.htm