Workmen installing a new air conditioner at St George’s Town Hall got a surprise as they took out the old unit.The spider and egg sacs inside was taken at first to be a black widow.“I’ve never seen a spider like this, and I’ve lived in Bermuda all my life,” said Bermuda Air Conditioning employee Neville Lathan.The squat-bodied spider, bearing a signature hourglass mark on its back, turned out to be the brown widow, often mistaken for its venomous cousin.Black widows commonly hitchhike to Bermuda in food or construction material, with the most recent case taken from a bag of grapes at a local supermarket.The brown widow can already be found across the Island, and it is not considered a dangerous spider.