Inquiline:

(n.) An animal that characteristically lives commensally in the nest, burrow, or dwelling place of an animal of another species.

(adj.) Being or living as an inquiline.

[Latin inquilnus, lodger, tenant : in-, in; see in-² + colere, to inhabit; see k^wel-¹ in Indo-European roots.]

• The American Heritage® Dictionary of the English Language, Fourth Edition. S.v. “inquiline.” Retrieved June 28 2007 from http://www.thefreedictionary.com/inquiline

Inquiline:

In zoology, an inquiline is an animal that lives commensally in the nest, burrow, or dwelling place of an animal of another species. For example, some organisms such as insects may live in the homes of gophers and feed on debris, fungi, roots, etc. The most ubiquitous types of inquiline are those found in association with the nests of social insects, especially ants and termites — a single colony may support dozens of different inquiline species. The distinctions between parasites, social parasites, and inquilines are subtle, and many species may fulfill the criteria for more than one of these, for inquilines do exhibit many of the same characteristics of parasites.

• Wikipedia contributors, ‘Inquiline’, Wikipedia, The Free Encyclopedia, 15 April 2007, 15:00 UTC, <http://en.wikipedia.org/w/index.php?title=Inquiline&oldid=122993110> [accessed 02 April 2007]