Termites are small white insects which live in hot countries in homes made of earth. Termites do a lot of damage by eating wood. an insect that eats and destroys wood from trees and buildings (termes, from tarmes ). Any of 1,900 species (order Isoptera) of mostly tropical, social, cellulose-eating insects that are usually soft-bodied and wingless. Intestinal microorganisms enable them to digest cellulose. Termite colonies consist of a fertile queen and king (reproductives), workers (the most numerous), and soldiers (see caste). Kings are less than an inch long (1-2 cm), but a queen may grow to more than 4 in. (11 cm). Workers and soldiers are sterile and blind. They survive two to five years; reproductives may live for 60-70 years. Termites live in a sealed, humid nest in wood or underground. Underground nests may be built up into a mound. Periodically, alates (winged, sighted forms) develop and leave the nest to start a new colony. Termites eat chiefly wood. Soil-dwelling termites attack wood that is in contact with the ground; wood-dwelling termites, requiring less humidity than soil-dwellers, attack trees, posts, and wooden buildings