When firefighters arrived they say they saw the elderly woman being carried out of the burning home by her son and neighbours.
The woman suffered minor injuries, the Tucson Fire Department confirmed according to KVOA. She was treated by paramedics as the scene of the blaze. No other injuries were reported.
It took 11 minutes and 23 firefighters to put out the fire.
The cause of the fire is under investigation although fire officials were reported as saying they suspected the fire was started by the propane torch by a person who was attempting to burn the spiders.
According to reports, the Red Cross is assisting two people displaced by the fire. The cost of the damage caused by the fire has not been released.