Is Ladybug a common noun or a proper noun?

"Ladybug" is a common noun because it refers to a general type of insect and is not a specific or unique individual. Common nouns are used to classify and refer to general categories of people, places, or things. Proper nouns, on the other hand, are specific names given to individual people, places, or things, such as "Ladybug Girl," a character in a children's book series.