Subterranean Termite: Size: Eastern subterranean worker termites are small in size, about half the size of match-head or 1/8" long and are soft bodied insects. They have no wings, are sterile, blind and work 24 hours a day. The soldiers have an orange colored rectangular armored head with mandibulate pinchers which they use to crush the ants. The termite swarmers are about 3/8" long (including wings) with a dark brown body and a small fontanelle (frontal gland pore) on its head. Their wings are brownish grey with two dark solid veins along the forefront of the front wings. The front wing is distinctly larger than hind wing.
 
Biology and Habitat: Swarming takes place in the spring, but without rain. In the southern areas, swarming usually follows rain. The swarmers are emitted in their thousands when a mature termite nest is large and well established. Eastern subterranean termites swarm in large numbers over a wide area to find a mate from another colony nest to start up a new colony. A suitable location for nesting should provide moisture and a readily available timber food source close by.
 
Several years are required before the termite colony reaches the typically mature size. In some locations an Eastern subterranean termite colony can contain several million termites foraging over a wide area (up to 12,000 square feet) and actively feeding on trees and freestanding poles as well as buildings and other timber structures. The colony nests of subterranean termites are usually located in the ground below the frost line, but above the water table. Mud galleries or "shelter tubes" are constructed across hard objects in order to gain access to timber food sources.
Subterranean Termites