Beetles are insects that form the order Coleoptera, in the superorder Holometabola. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Col
Coleoptera at the State Museum of Natural History, Karlsruhe, Germany
Royal goliath beetle, Goliathus regius, compared to a mouse
Titan beetle, Titanus giganteus, a tropical longhorn beetle
Scydosella musawasensis, the smallest known beetle: scale bar (right) is 50 μm.
Insects are hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body, three pairs of jointed legs, co
Insect: Six legs, three-part body (head, thorax, abdomen), up to two pairs of wings
Spider: eight legs, two-part body
Woodlouse: seven pairs of legs, seven body segments (plus head and tail)