Terminology

AntWiki: The Ants --- Online
subterranean
In the soil with or without any cover such as rocks or fallen logs.
terrestrial
On the ground beneath logs and stones, in or between grass stems.
lignicolous
Within the cavities of living or dead plants, including hollow stems, bamboo internodes, the base of ferns in trees, cavities under bark, or within myrmecophyte plants.
lithocolous
On or within rock crevices.
arboreal
Among leaves or twigs, either against a single surface such as a trunk or between adjacent surfaces such as leaves.