Ladybug is actually a beetle. Do you know the difference?

To most people, a “bug” is any small crawly animal. Like a spider, or a centipede, or maybe a chihuahua. To an entomologist, a “bug” is specifically a member of a particular lineage of insects, the Hemiptera. A cockroach is not a Hemipteran, so it can't be bug. Neither is a beetle, or a spider.

The Hemiptera or true bugs are an order of insects comprising around 50,000-80,000 species of groups such as the cicadas, aphids, planthoppers, leafhoppers, and shield bugs. They range in size from 1 mm (0.04 in) to around 15 cm (6 in), and share a common arrangement of sucking mouthparts. The name "true bugs" is sometimes limited to the suborder Heteroptera. Many insects commonly known as "bugs" belong to other orders; for example, the lovebug is a fly, while the May bug and ladybug are beetles.

More Info: www.myrmecos.net