As termite colonies mature, they produce reproductive termites (aelates) that travel in mudtubes (shelter tubes). These termites are waiting for a warm, spring day with sunshine and temperatures ranging from 75-85 degrees after a rain and normally swarm in mid-to-late morning. These swarmer termites intend to swarm outside, break off their wings, and start a new termite colony. Many times however, these termites swarm inside homes and businesses alerting the residents they have an active termite infestation. Termite swarm season can be as early as late February thru May for homeowners in the midsouth area. Termite companies in Memphis and the midsouth know exactly when swarm season hits, as their phones will begin ringing with calls from alarmed homeowners and customers.