I am giggling but with great sympathy, Eileen!
"Life in Florida", that's all I can say. Live here long enough and some sort of critter will invade and not want to leave. At least, an alligator didn't come in with your lanai furniture!
But, you do have my sincere sympathies, and I hope you have eradicated them. That type of worm is unknown to me and I hope stays that way!