There are both male and female ladybugs. They are called ladybugs regardless of whether or not they are male or female.
Ladybug is a slang term for the name lady beetle. They are harmless to humans and help farmers by eating garden pests such as aphids.
Scientists believe that ladybugs gather in large groups to diapause, the insect version of hibernation. They can live for up to nine months off the reserves they store. When the temperature rises to 55 degrees Fahrenheit, ladybugs emerge from diapause.
When threatened, ladybugs secrete a fluid that gives them a bad taste. They may also play dead to protect themselves.