In Florida, two types of termites are most usual; they are commonly called SUBTERRANEAN and DRYWOOD termites. Both types use the wood of your house for food.
Subterranean termites cause the most damage and are the most commonly found termite in Florida. These termites always have their nest in the ground.
To reach their food, which is your house, they must find a way to travel back and forth. This they do through tubes which they construct. The tubes serve to protect them from their enemies when they leave the ground in search of food.
The presence of subterranean termites in your house is usually detected by the appearance of these tubes. The termite inspector knows where and how to look for them.
These termites also use woodwork of your house for their food and for their home. They never go to the ground, but spend their entire life within the woodwork. They make no tubes. The termite inspector detects them by the presence of small pellets, resembling coarse sawdust. They eject these pellets from their habitat through holes they make in the wood.
Infestations are most common in the attic or window frames and sills where you may have seen these pellets.