Sphaerocoris annulus, commonly known as the Picasso bug, is found in the grasslands of tropical Africa. The bug with the loud pattern is actually quite small – about the size of an iPhone home button. When biologists first saw this shield-backed insect it reminded them of something the Spanish artist Pablo Picasso (1881-1973) may have created, hence the name. Although these tiny creatures are appealing to look at, they do have one drawback – they stink. When threatened, they will emit a pungent odour to ward off attackers. Looks can be deceiving.