• Webster's Revised Unabridged Dictionary
    • n Inquiline (Zoöl) A gallfly which deposits its eggs in galls formed by other insects.
    • ***
Century Dictionary and Cyclopedia
    • n inquiline In zoology, an animal that lives in an abode properly belonging to another, either at its expense, as certain insects that live in galls made by the true gall-insects, or merely as a cotenant, as a pea-crab which lives in an oyster-shell, or a sea-anemone growing on a crab's back; a commensal. See cut under cancrisocial.
    • inquiline Having the character of an inquiline; commensal.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Inquiline in′kwi-lin living in the abode of another, as a pea-crab in an oyster-shell
    • n Inquiline an animal so living
    • ***


Webster's Revised Unabridged Dictionary
L. inquilinus, a tenant, lodger


In literature:

Gallicolous: dwellers in galls, whether as producers or inquilines.
"Explanation of Terms Used in Entomology" by John. B. Smith
In the case of the nests of Bombi this is the best method of obtaining the inquilinous Apathus species.
"Directions for Collecting and Preserving Insects" by C. V. Riley