What is the most common bug?
Beetles are the most common on earth. There around 500,000 species of them.
Four-humped stink bug is the common name of Brochymena quadripustulata. Specifically, the bug is a native North and Central American insect. Other common names include rough stink bug and tree stink bug. They tend to be found on tree branches and tree trunks, from which they easily attack and feed on caterpillars.
The order Oniscidea contains various species of the woodlouse, also known as a doodlebug, pill bug, or sow bug. Some, notably the genus Armadillidium, can roll up into a ball if threatened. Some common European species are Porcellio scaber (rough woodlouse) and Oniscus asellus (common woodlouse). One found in the southern US is Armadillidium vulgare (pill woodlouse). Other names for the woodlouse : armadillo bug cheeselog cheesey-bug roly-poly parson's pig potato bug roll up bug…
A centipede is a type of bug, but it is not an insect, it is an arthropod. Insects have three body sections and six legs. The term "bug" covers more than just insects. No, a centipede is not (by definition) a bug. It is an arthropod, which is what most people think of when someone says bug. so the answer is Yes, and No.
The azalea lace bug [Stephanitis pyrioides] is the most common insect problem on azaleas. It sucks the sap from the leaves. The leaf tops are left with white or yellow and green speckles. The undersides have hard, shiny black droplets of excrement. The culprits may be the bug in either one of two stages. One may be the spiny, wingless larvae. The other may be the brownish adult insects with large, clear, lacy wings.