allochthone

noun2

1. •
   Inhabitants of a country with an ethnic background in another country, particularly people of Middle Eastern background living in Europe.

   • The idea was no sooner mooted, than we were reliably informed that we would have to play down considerably the Muslim component, sheltering behind a broader allochthone scout concept. — 2004
2. •
   An animal species that lives only part of its life in a particular habitat.