Subterranean termites live underground and build tunnels, referred to as mud tubes, to reach food sources. Like other termite species, they feed on products containing cellulose. Subterranean termites swarm in the spring-groups of reproductive termites go off to start new colonies.
Subterranean termites need contact with the soil to survive and live underground. They can build tunnels through cracks in concrete.
Subterranean termites are by far the most destructive species. They can collapse a building entirely, meaning possible financial ruin for the homeowner. The hard, saw-toothed jaws of a termite work like shears and are able to bite off extremely small fragments of wood, one piece at a time.