These termites get their name from the need for a high moisture content in the wood. They are extremely common in wooded or forest environments in cooler climates. Colonies are generally small by termite standards, with several thousand workers in a mature colony. There is no true worker caste, as nymphs perform the duties of the colony and all nymphs become either adult soldiers or adult alates.
These termites require wood with high moisture content, and controlling this excessive moisture condition will generally be effective in both preventing and repelling the termites. A local treatment with a residual insecticide injected into their galleries may be needed to kill workers still present after the moisture conditions are corrected.