In case you, too, find yourself entomologically challenged here is some information on ladybugs from:
Q. How did the ladybug get its name?
A. In Europe, during the Middle Ages, insects were destroying the crops, so the Catholic farmers prayed to the Virgin Mary for help. Soon the Ladybugs came, ate the plant-destroying pests and saved the crops! The farmers began calling the ladybugs "The Beetles of Our Lady", and they eventually became known as "Lady Beetles"! The red wings represented the Virgin's cloak and the black spots represented her joys and sorrows. They didn't differentiate between males and females.
Q. Are all ladybugs girls?
A. No. There are boy ladybugs and girl ladybugs. It's almost impossible for the average person to tell them apart. But here are some clue that might help. First, females are usually larger than males. Second, if you observe one ladybug riding atop another ladybug, they are in the process of mating. A male ladybug will grab the female's elytra (hard wings) and holds on tight. There are photos on the Ladybugs Mating Page to help you. An entomologist (bug scientist) can see the difference between males and females under a microscope.
Q. What are boy ladybugs called?
A. Boy ladybugs are called ladybugs, too.