<Tr> <Td> Section: </Td> <Td> Crinocheta </Td> </Tr> <Tr> <Td> Family: </Td> <Td> Armadillidiidae Brandt, 1833 </Td> </Tr> <P> Armadillidiidae is a family of woodlice, a terrestrial crustacean group in the order Isopoda . Unlike members of other woodlouse families, members of this family can roll into a ball, an ability they share with the outwardly similar but unrelated pill millipedes and other animals . This ability gives woodlice in this family their common names of pill bugs, roly polies, and doodle bugs . The best known species in the family is Armadillidium vulgare, the common pill bug . The roly polies are not native to the Americas, but instead were introduced from Europe . </P> <P> Pill bugs in the family Armadillidiidae are able to form their bodies into a ball shape, in a process known as conglobation . This behaviour is shared with pill millipedes (which are often confused with pill bugs), armadillos, and cuckoo wasps . It may be triggered by stimuli such as vibrations or pressure, and is a key defense against predation; it may also reduce respiratory water losses . </P>

What is the real name for rollie pollies