The Black and Yellow Garden Spider, Argiope aurantia. This one is a female. I don’t recall ever seeing a male, which, according to the link, is much smaller and duller.
The female mates only once, with a male who has been hanging around her web. The male dies after mating, sometimes being eaten by the female. I guess the male must actually lose something vital from sex, giving credence to the fear of old-time coaches, who advised their athletes to avoid sex before a contest.
The Garden Spider’s size, brilliant color, and huge, orderly web, help make it one of a child’s first insect memories, at least in the American countryside. Below are a couple of egg sacs. Spiders hatch from the egg sac the following spring.