They build mud tubes because of their sensitivity. Often, finding these mud tubes are another sign of an termite infestation. Ants generally do not swarm at the same time as termites, but it can happen. The following is a picture to show the differences. Termites have a thick waist and ants have a narrow waist.
Termites have four wings that are all equal in length.
Ants have four wings however, two are larger and two are smaller.