Nymphs, along with workers, also tend and care for the young. Reticulitermes, secondary Secondaries play a critical role in the maintenance and rapid increase of a colony's population and help expand the foraging territory of existing colonies by creating secondary colonies. They vary in appearance, yet are larger than nymphs or workers and are often times darker. Reticulitermes, soldier These termites are yellowish-brown and have rectangular shaped heads that are wider in the front for defense purposes. The head is equipped with two very large jaws or mandibles.
Soldiers also have a fontanelle or frontal gland pore.
Their head length is nearly two times their width. Reticulitermes, worker Workers are blind, sterile and wingless. Yet, they are the most encountered and most destructive. Workers measure one-quarter inch and are responsible for most of the labor of the colony and must care for the young.