Fact file
Order: Hemiptera
Body length: 1 - 115mm
Species: World - 82 000, UK - 1700
Many people say that all insects, spiders and other creepy crawlies are bugs. But there are a group of insects called the Hemiptera that are 'true bugs' - like aphids, cicadas and stink bugs. They all have tube-like piercing or sucking mouthparts.