Termites swarm for about 30-40 minutes, and then the wings are discarded. Termite swarming season can last for 5-6 months, usually in the spring. 

You can attempt to kill termites that are in your wall with our recommended treatment options above. However, since it is difficult to determine if you've eliminated an entire termite colony, the best way to kill termites in the wall is with professional help. 

Termites are attracted to light when they are swarming. Once they shed their wings, they are no longer attracted to light.